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Technical Exhibits

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Scientific Exhibits and Posters November 1-5, 1981

Georgia World Congress Center Paul R. Lichter, MD, Program Chairman

The scientific exhibits and posters will be located on Level I of the Georgia World Congress Center. Exhibits and posters will be on display from 8 am to 5 pm daily, beginning on Sunday, November 1, and continuing through Thursday, November 5. The following is an alphabetic listing of the exhibits with their booth numbers.

Exhibit Booth

Air Bubble Test for Nasolacrimal Patency 18 American Israeli Ophthalmological Society 39 Anatomicoclinical Syndromes Related to Vortex Network Anomalies 1 An Autogenous Kinetic Dermis-Fat Orbital Implant 16 Bilaterial Ischemic Optic Neuropathy-Diagnosis, Classification, and Treatment 21 Contact Lens Association of Ophthalmologists, Inc. 38 Cosmetic Blepharoplasty 12 Craniofacial Anomalies: Ocular Implications 15 Current Evaluation and Management of Macular Diseases 7 Essential Blepharospasm 14 Evaluation of Binocular Status by Different Methods 19 Eye Care, Inc. 40 Extra Step You Can Take for Your Partially Seeing Patients 28 Glaucoma Service and Research Laboratories (GSRLs) 23 Goniodysgenesis-Master Key to Glaucoma 22 Helen Keller International: Prevention and Treatment of Eye Disease and Blindness in the Developing Countries 34 Insight into Eyesight! The Ophthalmic Nurse 42 International Eye Foundation Blindness Prevention in Developing Countries 33 Joint Commission on Allied Health Personnel in Ophthalmology 37 Krypton Laser Photocoagulation in Macular Diseases 6 Low Vision-Optical Treatment of Eye Diseases 26 Macular Pigments: Optimal Laser Wavelength for Photocoagulation 9 Management of Complications in the Anophthalmic Socket 17 Management of Traumatic Vitreous Hemorrhage 5 Modern Eye Banking Techniques 25 Most Useful and Newest Aids for Low Vision 27 National Society to Prevent Blindness Programs and Services 36 Nine-O and 10-0 Polydioxanone (PDS) in Cataract Surgery 24 Noninvasive Carotid Evaluation Using Pulsed Doppler Imaging for Patients with Ophthalmic Disorders 2 Nostalgic Look at our Past: A Visual Presentation of the Early Delivery of Eye Care 32 Ophthalmic Photography 29 Ophthalmology on Stamps 30 Orthoptist and Neuro-Ophthalmologic Disorders 20 Pattern Dystrophy of the Macula 10 Physicians Education Network, Inc. 35 Project Orbis International 41 Retinal Nerve Fiber Layer Alterations in Heredo-Degenerative Disorders of the Outer Retina 8 Simplified Techniques in Ptosis Surgery 13 Soft Toric Lenses 31 Spontaneous Regression of Retinoblastoma 11 Surgical Management of Epiretinal Membranes 4 Transvitreal Argon Laser Endophotocoagulation 3

81

82

Scientific Exhibits Exhibit 1 Anatomicoclinical Syndromes Related to Vortex Network Anomalies Pierre M. Amalric, MD, Albi, France

The vortex vein network presents numerous congenital anomalies, particularly in myopic patients. Moreover, the clinical syndromes related to pathological alterations of the choroidal veins are not well known. New methods of investi­gation (wide-angle retinography, infra-red, fluorescein, and cardio-green angiography) allow us to characterize indi­vidual anomalies and clinical syndromes related to trau­matic, infectious, vascular, dystrophic, pseudotumoral, and congenital alterations of the vortex veins.

Exhibit 2 Noninvasive Carotid Evaluation Using Pulsed Doppler Imaging for Patients with Ophthalmic Disorders W. Sanderson Grizzard, MD, *William M. Black­shear, MD, James A. Rush, MD, *Stephen F. Gordon, Tampa, FL

Disease of the extracranial carotid arteries can cause a variety of ocular ischemic disorders. Noninvasive evaluation of the carotid bifurcation using pulsed Doppler imaging, combined with evaluation ofthe Doppler flow characteristics from both the internal and external carotid arteries, permits accurate quantification of carotid occlusive disease. High­grade stenosis and occlusions of the internal carotid, which can decrease ophthalmic artery pressure, can be accurately identified, as can many nonstenotic ulcerated plaques that are potential sources of cerebral or ocular emboli.

The method is over 90% accurate in the detection of high­grade stenosis and occlusions. Up to 75% of low-grade ca­rotid stenoses can be identified. The physics and equipment used in pulsed Doppler imaging will be reviewed, and our experience using this technique in four patients who had retinal vascular disease will be described.

Exhibit 3 Transvitreal Argon Laser Endophotocoagulation Maurice B. Landers, III, MD, *Michael T. Trese, MD, *Michael Bessler, Durham, NC

Argon laser endophotocoagulation is now available during vitreous surgery to treat retinal breaks and to give panretinal photocoagulation. This exhibit will show the technique of using argon laser endophotocoagulation in the treatment of retinal breaks and in giving panretinal photocoagulation in both aphakic and phakic patients through both fluid and gas. Visualization in a phakic gas-filled eye requires use of a new contact lens developed for this purpose. The fiberoptic tip itself, contact lens, and videotaped procedures, as well as a demonstration of the histopathology of the lesions and optics of the system, will be presented.

Exhibit 4 The Surgical Management of Epiretinal Membranes Raymond R. Margherio, MD, Delbert P. Nachazel, Jr., MD, Patrick L. Murphy, MD, Morton S. Cox, MD, Royal Oak, MI; W. Richard Green, MD, Baltimore, MD

* By invitation

The results of closed pars plana vitrectomy with mem­brane peeling on approximately 85 eyes with severe visual loss, secondary to epiretinal membrane formation, is pre­sented. Follow-up observation ranging from six months to 57 months indicates that significant visual improvement may be obtained in carefully selected cases of eyes with idiopathic and secondary epiretinal membranes associated with varied ocular conditions. Patients with diabetic retinopathy are specifically excluded from this series. Case histories, clin­ical characteristics, surgical techniques, and histologic studies are reviewed. Indications, results, and complica­tions will be discussed and documented with slide and movie presentations.

Exhibit 5 Management of Traumatic Vitreous Hemorrhage Travis A. Meredith, MD, *Ricardo B. Akstein, MD, Frank C. Bell, MD, Henry J. Kaplan, MD, William C. Coles, MD, Atlanta, GA

Traumatic vitreous hemorrhage may receive immediate surgical intervention, delayed surgical intervention, or pro­longed observation, depending on the associated ocular damage. Destruction of choroid and retina (retinitis sclopeteria) or hemorrhagic choroidal detachment with sec­ondary vitreous hemorrhages will illustrate severe ocular damage requiring only observation. Good primary repair of penetrating injuries is emphasized, allowing definitive in­traocular surgery as a secondary procedure. The importance of diagnostic ultrasound, bright flash electroretinography, and CT scanning will be demonstrated in assessment and planning of primary and secondary surgical procedures. Newer concepts of management of IOFB with associated vitreous hemorrhage will be illustrated.

Exhibit 6 Krypton Laser Photocoagulation in Macular Diseases Felix N. Sabates, MD, King Y. Lee, MD, Matthew C. Ziemianski, MD, *Gary S. Gallimore, Kansas City, MO

This exhibit will demonstrate our experience in the treat­ment of 125 cases of a variety of acute macular diseases including senile macular degeneration, presumed ocular histoplasmosis syndrome, idiopathic subretinal neovascular membrane, and central serous choroidopathy. The advan­tages, complications, and results of this newer mode of laser therapy will be shown with color and fluorescein photo­graphs before and after treatment.

Exhibit 7 Current Evaluation and Management of Macular Diseases Lawrence J. Singerman, MD, Cleveland, OH; Jerry A. Shields, MD, Philadelphia, PA; Kurt A. Gitter, MD, New Orleans, LA; David H. Orth, MD, Olympia Fields, IL; Howard Schatz, MD, San Francisco, CA

We will review the current approach to, and studies re­garding, evaluation and management of macular diseases. This work is sponsored by the Macula Society and will be presented in five panels: 1) disciform maculopathies; 2) macular diseases secondary to retinal vascular diseases; 3) macular disease secondary to inflammation and vitreoretinal

• SCIENTIFIC EXHIBITS AND POSTERS 83

interface changes; 4) macular dystrophies; and 5) photo­coagulation for macular diseases.

Exhibit 8 Retinal Nerve Fiber Layer Alterations in Heredodegenerative Disorders of the Outer Retina "'Rosalind A. Stevens, John C. Cavender, MD, Nancy M. Newman, MD, San Francisco, CA; "'Charles Tunnadine, London, England

Alterations of the retinal nerve fiber layer have been documented in several disease processes thought to be of outer retinal layer origin (photoreceptors and/or retinal pig­ment epithelium). Specifically, nerve fiber layer defects and generalized nerve fiber layer dropout have been observed in rod-cone dystrophies, Best's vitelliform dystrophy, fundus flavimaculatus, and cone-rod dystrophies. In some of these entities (eg, retinitis pigmentosa) these inner retina! nerve fiber changes or their concomitant manifestations (eg, optic atrophy) are acknowledged and considered one aspect of the disease process, while in others (eg, Best's vitelliform dys­trophy, fundus flavimaculatus) the retinal nerve fiber layer changes are rarely discussed.

Retinal nerve fiber layer alterations were documented by ophthalmoscopic examination, standard fundus photogra­phy, and red-free fundus photography.

The documented changes and functional alterations (visual fields, electrophysiology) which occur in these clinical en­tities will be demonstrated and their possible implications discussed.

Exhibit 9 Macular Pigments: Optimal Laser Wavelength for Photocoagulation Clement L. Trempe, MD, "'Martin A. Mainster, MD, "'Oleg Pomerantzeff, J. Wallace McMeel, MD, John J. Weiter, MD, H. MacKenzie Freeman, MD, Charles L. Schepens, MD, Boston, MA

Recent developments in laser technology permit a wide selection of wavelengths for photocoagulation. The com­parative efficiency of argon blue (448 nm), argon green (514 nm), Krypton yellow (568 nm) and Krypton red (647 nm) is evaluated in terms of the spectral absorption characteristics of melanine, hemoglobin, and macular xanthophyll. Basic studies of the absorption characteristics and intraretinal dis­tribution of xanthophyll are presented. Histological com­parisons of the effects of the different laser wavelengths on primate retinae, and clinical trials of a new Krypton yellow laser photocoagulation system, are demonstrated.

Exhibit 10 Pattern Dystrophy of the Macula Robert C. Watzke, MD, "'James C. Folk, MD, Iowa City, IA; "'Robert M. Lang, MD, Ottumwa, IA

There is a group of hereditary dystrophies of the pigment epithelium known as •• pattern dystrophies of the pigment epithelium." This exhibit will present two families which demonstrate the entire spectrum of this disorder from minor foveal macular cltanges to reticular, macroreticular, incom­plete, and complete butterfly patterns. While earlier reports indicate only minor loss of vision, we found severe visual

* By invitation

loss and morphologic chorioretinal changes in some older family members.

This hereditary macular dystrophy is not rare, and it fre­quently mimics other macular disease. The exhibit will pre­sent pattern dystrophy's characteristic and pleomorphic fun­dus appearance, its inheritance. electrophysiologic features, and visual prognosis.

Exhibit 11 Spontaneous Regression of Retinoblastoma Brenda L. Gallie, MD, *R. A. Phillips, PhD, Toronto, Ontario; Robert A. Ellsworth, MD, David H. Abramson, MD, New York, NY

Spontaneous regression of retinoblastoma has been pre­sumed to occur in both phthisis bulbi, with pathological evi­dence of necrotic intraocular tumor, and in single or multiple retinomas in patients with the retinoblastoma gene. After consideration of 31 patients, we propose quite different etiologies for these two entities. Phthisis bulbi results when central vessel occlusion produces intraocular ischemic ne­crosis. If tumor has extended beyond the eye, however, fatal progression continues. Retinomas, or nonprogressive par­tially calcified retinal lesions surrounded by pigment epithe­lial disturbance, arise when the second mutation leading to malignant retinoblastoma occurs late, and limited abnormal embryonic retinal proliferation without malignant potential results. The diagnosis of retinoma, however, carries the same genetic and clinical implication as retinoblastoma.

Exhibit 12 Cosmetic Blepharoplasty Henry I. Baylis, MD, Encino, CA; Norman Shorr, MD, Beverly Hills, CA; "'Russell Neuhaus, MD, North Hollywood, CA; "'Nachum Rosen, MD, Los Angeles, CA

Cosmetic blepharoplasty differs from functional bleph­aroplasty in both the approach to the patient and the sur­gical technique. Ophthalmologists, who have generally concentrated on functional blepharoplasty, frequently avoid cosmetic surgery because of inexperience. They may be un­prepared to deal with the cosmetic patient's expectations and goals. However, the training of the ophthalmologist makes him well suited to learn both the surgical technique and the management of complications of cosmetic bleph­aroplasty. This exhibit will illustrate. with videotapes the surgical technique of cosmetic blepharoplasty and the prep­aration, preoperative, and postoperative management of the cosmetic patient.

Exhibit 13 Simplified Techniques in Ptosis Surgery Martin Bodian, MD, "'Virginia Cantarella, Brooklyn, NY

Simplified techniques in ptosis repair will be presented which have been proven effective in the training of residents and practicing ophthalmologists over the past 20 years. Original drawings in color and photographs (pre- and post­operative) will show: 1) cutaneous approach for con­junctivolevator resection; 2) repair of segmental ptosis; 3) frontalis sling operation using human sclera; 4) removable suture in tarso-conjunctival resection (Fasanella); and 5) massage technique for overcorrection. Results compare favorably with established methods despite more simplified surgery and fewer complications.

84 OPHTHALMOLOGY • SEPTEMBER 1981 • PROGRAM SUPPLEMENT

Exhibit 14 Essential Blepharospasm William H. Coles, MD, *Robert Spector, MD, Clinton D. McCord, MD, Atlanta, GA

Unusual diagnostic features of essential blepharospasm are presented, as demonstrated by film analysis of 30 pa­tients, and these features are related to theories of the cause: vascular, psychogenic, postinfectious, and aberrant regener­ation. Seventh nerve resection, and the indications for its use, are reviewed with mention of other therapies that have proven ineffective.

Exhibit 15 Craniofacial Anomalies: Ocular Implications Marilyn T. Miller, MD, *Samuel Pruzensky, DDS, Chicago,IL

There are multiple types of pathology of the globe and ocular adnexa associated with craniofacial anomalies; some are primary and integral to the diagnosis of the syndrome, but many are secondary to disturbances in hard and soft tissues around the globe. This exhibit is concerned with cer­tain ocular manifestations of a sample of craniofacial mal­formations that might be noted as one performs a routine ocular examination. Secondary ocular problems, useful spe­cial diagnostic procedures, therapeutic suggestions, and the effects of reconstructive surgery will also be shown.

Exhibit 16 An Autogenous Kinetic Dermis-Fat Orbital Implant Byron Smith, MD, Stephen L. Bosniak, MD, New York, NY

This exhibit will use videotape, drawings, and photo­graphs to demonstrate the indications, the complications, and the surgical technique for performing a dermis-fat graft and implanting it into the orbit. The discussion will include the selection of the proper donor site.

Exhibit 17 Management of Complications in the Anophthalmic Socket David B. Soli, MD, Philadelphia, PA

Surgical correction of complications resulting from enu­cleation surgery will be presented in this exhibit, including such problems as superior eyelid sulcus, extrusion, dropped socket appearance, and enophthalmos. Narrated videotapes of the surgical procedures, surgical drawings correlating with surgical photographs, and preoperative and postoperative photographs will be included.

Exhibit 18 The Air Bubble Test for Nasolacrimal Patency Warren L. Broughton, MD, Bethesda, MD; Martin E. Lederman, MD, Fairfax, VA

This short audiovisual presentation describes a new tech­nique for assessing the patency of the nasolacrimal system in an anesthesized patient. Previously, it has been the common practice to irrigate with a fluid solution after probing for nasolacrimal obstruction. The irrigant can pose a threat from

* By invitation

aspiration as it drains into the nasopharynx i.n the anesthesized patient.

The air bubble test eliminates the need for fluid irrigation by the injection of air into the cannalicular system. A soap bubble, created by a film of providone iodine solution at the nares, expands by the air to confirm patency of the system.

Exhibit 19 The Evaluation of Binocular Status by Different Methods Emanuel Krimsky, MD, Brooklyn, NY

The term "Binocular Status" implies the positional and functional behavior of paired eyes, operating at different distances and directions of gaze.

Excluding eye damage, systemic disease, or psychologic problems, the methods of testing for binocular status in nor­mally straight or strabismic eyes do not follow a uniform pattern and are subject to individual interpretations. These methods will be demonstrated using the corneal light reflex as an objective guide.

Exhibit 20 The Orthoptist and Neuro-Ophthalmologic Disorders *Frankie W. Stegall, CO, *Jere E. Hess, CO, Atlanta, GA

This exhibit shows a diagram of the anatomy of the brainstem, including the third, fourth, and sixth nerve nu­cleus. It further describes lesions at various levels of the brainstem and its infranuclear pathways to the extraocular muscles. It shows the infranuclear pathways to the ex­traocular muscles by fiberoptics. Lesions at various levels of the brainstem are explained.

Exhibit 21 Bilateral Ischemic Optic Neuropathy-Diagnosis, Classification, and Treatment David W. Zauel, MD, Indianapolis, IN; Ruth C. Goodell, MD, Danville, IN; *Kenneth G. Julian, Indianapolis, IN

This scientific exhibit illustrates the experience of Indiana University School of Medicine with patients presenting with acute bilateral ischemic optic nerve disease over a four-year period. Classification, diagnostic techniques, treatment, and treatment results are displayed. Serial photography is in­cluded. A detailed classification of the causes of monocular and binocular ischemic optic neuropathy is presented.

Exhibit 22 Goniodysgenesis-Master Key to Glaucoma *Tord Jerndal, MD, *Bjorn Svedbergh, MD, Gothenburg, Sweden

Goniodysgenesis is a characteristic maldevelopment ofthe iridocorneal angle, resulting in a pretrabecular block. De­pending on its severity, goniodysgenesis may lead to infan­tile or late congenital glaucoma. Often hereditary (autosomal dominant), it is the only well-defined hereditary factor for glaucoma. This exhibit consists of 13 enlarged slides in color or black and white highlighting various aspects of goniodysgenesis and its relation to glaucoma.

• SCIENTIFIC EXHIBITS AND POSTERS 85

Exhibit 23 Glaucoma Service and Research Laboratories (GSRLs) *Charles Kurtzman, Jess A. Smith, MD, *D. Wray, Houston, TX; Kenneth T. Richardson, MD, Anchorage, AK; George L. Spaeth, MD; Richard P. Wilson, MD, Philadelphia, PA, *Klaus Heilmann, MD, Munich, West Germany

This exhibit will illustrate aspects of a unique collaborative program that combines research into the risk factors as­sociated with glaucoma with a health care delivery system tailored for this chronic disease.

Glaucoma Service and Research Laboratories in Houston, Philadelphia, and Munich, West Germany, have been par­ticipating in the computerized acquisition of data against specific rigid protocols designed to maintain commonality and consistency of test administration.

Exhibit 24 Nine-O and 10-0 Polydioxanone (PDS) in Cataract Surgery J. Elliott Blaydes, MD, Bluefield, WV

The ideal cataract suture is one which will hold the wound together until such healing takes place that it can stand alone. Synthetic absorbable sutures remain 28 to 35 days while nylon remains for a year or longer. Polydioxanone (PDS) has been developed as a medium-term absorbable suture.

The PDS suture's performance will be evaluated in the following categories: intraoperative observations-needle, visibility, strength, pliability, pull-through, fraying, knot, tying; and postoperative observations-suture disappear­ance, reaction, wound healing, complications, recovery of function.

This report will reflect our clinical experience with PDS in cataract surgery, comparing its performance to braided Vicryl and nylon.

Exhibit 25 Modern Eye Banking Techniques *Ruth Fisher, Iowa City, IA; Walter Mayer, MD, Richmond, VA; Jay H. Krachmer, MD, Iowa City, IA; *Dorothy Brawner, Richmond, VA

The four panels of our exhibit will show administrative management of eye banks, harvesting of eye tissue, evalua­tion of donor material, and the latest guidelines for utilization of tissue.

The exhibit will offer a handout on the latest guidelines for setting up and operating an eye bank, as well as systemic and ocular contraindications to the use of tissue.

Exhibit 26 Low Vision-Optical Treatment of Eye Diseases Eleanor E. Faye, MD, Robert Silver, MD, Munro J. Levitzy, MD, Judith E. Gurland, MD, *Bruce Rosenthal, aD, *Clare Hood, RN, *Elisabeth Stern, RN, New York, NY

The ophthalmologist, who has the responsibility for pri­mary care, also has the responsibility for the optical care of the patient with impaired visual function. Modem surgical and medical technology has decreased total blindness but

* By invitation

increased the numbers of the partially sighted. These pa­tients need an ophthalmologist who can integrate the findings of the disease with the optical therapy necessary. The exhibit will provide an update on current optical devices and meth­ods of management of the most common diseases. Slide pro­grams, aid demonstrations, and staff consultations ongoing.

Exhibit 27 Most Useful and Newest Aids for Low Vision Gerald E. Fonda, MD, *Edwin Miller, Peter Nussbaum, MD, *Lois Fonda, Livingston, NJ

The most useful visual aids benefit more than 95% of all low-vision patients who can be helped. Types of spectacle and nonspectacle magnifiers will be shown with their indica­tions and contraindications for maculopathy of the aged and tunnel vision.

Newest developments in half-eye, bifocal, trifocal, and telescopic aids will be available for demonstration.

Exhibit 28 The Extra Step You Can Take for Your Partially Seeing Patients *Lorraine H. Marchi, New York, NY

Exhibit features NAVH custom-made large print (18-point) textbooks, reading material, and newsletters for chil­dren and adults-a result of our pioneering experience in the field. Samples of NA VH-approved commercially published books will be displayed. A new publication for the lay public, Macular Disease, will be shown, as well as all of our infor­mational material for lay and professional persons. Impor­tant new low-vision aids will be exhibited, including the new Visualtek product, Voyager@, a smaller, more advanced style, which magnifies up to 45 times on a 12-inch screen.

Exhibit 29 Ophthalmic Photography *Kenneth G. Julian, Indianapolis, IN; *Ogden Frazier, Santa Ana, CA; *Thomas Egnatz, Indianapolis, IN; *Bruce W. Morris, San Francisco, CA; *WiIliam Ludwick, Los Angeles, CA

Photographic display of the following procedures in ophthalmic photography will be included: 1) color fundus photography, 2) retinal angiography, 3) anterior segment an­giography, 4) external photography, 5) slit-lamp photogra­phy, 6) goniography, and the fundus camera used by Novotny and Alvis to photograph the first fluorescein angiograms of the human retina.

Exhibit 30 Ophthalmology on Stamps John F. Bigger, MD, Augusta, GA

This is an exhibit of worldwide postage stamps which re­late to ophthalmology and the eye. It includes many ophthalmologists, stamps related to optics, braille, blind­ness, rehabilitation of the blind, eye diseases, and prevention of blindness.

Exhibit 31 Soft Toric Lenses Barry A. Maltzinan, MD, *Donald J. Cinotti, MD, Jersey City, NJ

An exhibit is planned to demonstrate the following aspects of soft toric contact lenses: 1) the indications and needs for

86 OPHTHALMOLOGY. SEPTEMBER 1981 • PROGRAM SUPPLEMENT

toric lenses in the contact lens population, 2) fitting tech­niques for toric soft lenses, and 3) summary of results in fitting 200 eyes with soft toric lenses.

Exhibit 32 A Nostalgic Look at our Past: A Visual Presentation of the Early Delivery of Eye Care Walter H. Marshall, MD, Gainesville, FL

The author will display an extensive collection of histori­cal material that will furnish the viewer with a nostalgic look at the development of the eye care profession, from the itin­erant spectacle peddler to the ophthalmologist. A focal point of the display will be an authentic recreation of an ophthal­mologist's exam room, circa 1890.

Exhibit 33 International Eye Foundation Blindness Prevention and Treatment in Developing Countries John H. King, Jr., MD, Robert H. Meaders, MD, Bethesda, MD

This exhibit reports the prevalence and etiology of blind­ness and blinding eye conditions in a developing country, as demonstrated in scientific assessments. Related statistics from the World Health Organization are included. Clinical examples of blinding conditions are shown. Strategies for planning and implementing blindness prevention programs are presented pictorially and textually. The training of pri­mary workers and delivery of primary eye care at the village level, provision of secondary eye care, and coverage of spe­cialized medical and surgical care by physician and non­physician health care providers are depicted. The relation­ship between the International Eye Foundation and the So­ciety of Eye Surgeons is explained.

Exhibit 34 Helen Keller International: The Prevention and Treatment of Eye Disease and Blindness in the Developing Countries Alfred Sommer, MD, Baltimore, MD; *John H. Costello, *Susan T. Pettiss, PhD, New York, NY

An exhibit depicting HKI's Nutritional Blindness Preven­tion Project in Indonesia. This was a large-scale investigation into the origins of Vitamin A deficiency and nutritional blindness and what might be done to prevent them, con­ducted from September 1976 to July 1980. The project was undertaken primarily at the initiative of the Indonesian Ministry of Health and HKI, and was administered by In­donesia's National Center for Health Research and Devel­opment and carried out under the direction of a Vitamin A Deficiency Steering Committee. The project included four basic studies which led to a number of findings, plus recom­mendations for new approaches to wiping out xerophthalmia in the 15 provinces where it is most prevalent.

Exhibit 35 Physicians Education Network, Inc. James H. Allen, MD, New Orleans, LA; *George P. Russell, St. Petersburg, FL

* By invitation

Exhibit 36 National Society to Prevent Blindness Programs and Services *Virginia S. Boyce, *Lydia O. Maguire, New York, NY

The exhibit illustrates major facets of the Society's pro­gram to further the prevention of blindness, highlighting its community programs to alert the public to the need for proper eye care, information and referral services, profes­sional education, and research grants.

Exhibit 37 Joint Commission on Allied Health Personnel in Ophthalmology Peter Y. Evans, MD, Washington, DC; Thomas J. Kirby, MD, Rochester, MN; Robert E. Christensen, MD, *Richard Augustine, *Alice G. Liska, RN, *Nancy Weber, Los Angeles, CA

The exhibit will be three-fold and free-standing. Informa­tion regarding certification of ophthalmic medical assistants is printed on the large hinged sections of the display. A sup­ply of brochures will be available for distribution and will contain information regarding education, certification, con­tinuing education, and accreditation of courses for allied health personnel in ophthalmology.

Exhibit 38 Contact Lens Association of Ophthalmologists, Inc. Paul R. Honan, Jr., MD, Lebanon, IN; Herschell H. Boyd, MD, Bellevue, W A; Oliver H. Dabezies, Jr., MD, New Orleans, LA

The basic purpose of the Contact Lens Association of Ophthalmologists, Inc. is to further knowledge of contact lens fitting among ophthalmologists. Members of the Associ­ation will be present for consultation. Opportunity will be offered for questions about hard and soft lenses, dis­cussion of specific problems, and methods of basic fitting techniques.

Exhibit 39 American Israeli Ophthalmological Society Albert Hornblass, MD, New York, NY

The American Israeli Ophthalmological Society is an or­ganization devoted to increasing cooperation and communi­cation with our Israeli colleagues. The Society has spon­sored three international meetings in Israel. The most recent one on September 20, 1981 was on congenital and hereditary retinal diseases. Films from the Audiovisual Institute will be shown. The various activities of the Society will be exhibited.

Exhibit 40 Eye Care, Inc; David A. Newsome, MD, *E. Timothy Carroll, Washington, DC

The booth describes our work among the rural poor in Haiti and Botswana, where we run training programs for ophthalmic assistants and operate screening clinics on a permanent basis.

• SCIENTIFIC EXHIBITS AND POSTERS 87

Exhibit 41 Project Orbis International David Paton, MD, Houston, TX; *George Hambleton, New York, NY; *Tony Zuma, Houston, TX

At the time of the Annual Meeting, it is probable that Orbis will be in full operation: a refit DC-8 aircraft serving as an eye operating theatre and teaching classroom for opti­mal audiovisual recording, and for exchange of new concepts and techniques between ophthalmologists in many countries. Orbis is designed to assess the value of skills transfer by hands-on surgery, an ingredient of professional competence that often is elusive in systems of continuing medical educa­tion for surgical specialists. It is a teacher-to-teacher, trainee-to-trainee system for interchange of skills and infor­mation.

Abroad, Orbis will collect and disseminate useful new ophthalmic management techniques (not necessarily

technology-dependent) that will benefit patients with eye disorders of many kinds. The ORBIS itinerary will be deter­mined by the invitations from ophthalmological societies lo­cated in areas where the airports can receive a jet aircraft.

Exhibit 42 Insight into Eyesight! The Ophthalmic Nurse *Catherine E. Sgabellone, RN, *Barbara Clark, RN, Rochester, NY; Aileen Murphy, RN, Buffalo, NY

The ophthalmic nurse has responded to the challenge of the 80s with a commitment to research, learning new technology, and responding to the complexities of modern ophthalmic care.

This exhibit, under the sponsorship of the American Soci­ety of Ophthalmic Registered Nurses, will describe the di­verse roles of the ophthalmic nurse in assisting the ophthal­mologist to provide primary ophthalmic care.

Scientific Posters

During the meeting, the authors of these posters will be available to discuss their papers. On each poster, a time schedule will indicate when the author will be in attendance each day.

Poster 1 Non-Guttate Corneal Endothelial Degeneration: Clinical and Histopathologic Findings Richard L. Abbott, MD, San Francisco, CA; Ben S. Fine, MD, Washington, DC; Robert G. Webster, Jr., MD, *Patrick G. Paglen, MD, William H. Spencer, MD, San Francisco, CA

Corneal endothelial degeneration not accompanied by guttae is often unrecognized in eyes being evaluated for in­traocular surgery. The purpose of this presentation is to de­scribe the clinical and histopathologic findings in patients having unilateral phakic corneal edema, without slit-lamp evidence of guttae or endothelial abnormalities in the fellow eye. Specular microscopy of the nonedematous cornea, however, reveals endothelial pleomorphism and markedly reduced cell counts.

Clinically unrecognized, endothelial disease is proposed as a cause for the unilateral corneal edema and is verified by light and electron microscopy of the tissue. These pathologic findings vary from those found in Fuchs' dystrophy and may represent a form of endothelial degeneration of undeter­mined etiology.

Poster 2 Recurrent Herpetic Keratitis Is Shown To Be Strain-Specific by Restriction Endonuclease Fingerprinting Penny A. Asbell, MD, *Ysolina M. Centifanto-Fitzgerald, PhD, Herbert E. Kaufman, MD, New Orleans, LA

Although there is evidence for latency of herpes virus in the ganglia, there has been no evidence that recurrences of

* By invitation

clinical infection in an individual are caused by the same virus strain. In our study, isolates from patients with sepa­rate recurrent episodes of keratitis were examined with re­striction endonuclease analysis of the DNA to obtain strain­specific fingerprinting. In each patient, all isolates were the same strain. This indicates that recurrent clinical HSV dis­ease is not caused by serial and unrelated infections, but rather by reactivation of latent virus.

Poster 3 Butyl-Cyanoacrylate Adhesive in Temporary Punctal Occlusion *Steven L. Berk, MD, *Larry S. Stone, MD, *Karl J. Fritz, MD, PhD, Chicago,IL

Permanent occlusion of the lacrimal puncta by cautery is a useful part of the therapy of the dry eye patient, but carries the risk of permanent epiphora. Various methods of tempo­rary canalicular occlusion, including gelatine and silicone rods, have been employed, each with varying degrees of efficacy, patient comfort, and availability to the practitioner. We have successfully developed a method of temporary punctal occlusion in a rabbit model, using tissue adhesive, and clinical trials have thus far been encouraging.

Poster 4 Laser Treatment of Corneal Neovascularization *William P. Blaso, MD, *Howard Conn, MD, Arnall Patz, MD, A. Edward Maumenee, MD, Baltimore, MD

Five cases of corneal neovascularization were treated with the argon laser. It was essential to define the neovascular pattern with fluorescein angiography. Two cases with single feeder and collector vessels responded with complete vessel closure. Four-year follow-up showed no recurrence of

88 OPHTHALMOLOGY • SEPTEMBER 1981 • PROGRAM SUPPLEMENT

neovascularization and clearing of secondary lipid deposi­tion. One patient with vessels emanating from one quadrant of the limbus showed only partial resolution of neovasculari­zation. Two cases with diffuse 360-degree neovasculariza­tion and chronic inflammation failed to respond to laser treatment. Details of laser treatment, rationale for therapy, and suggestions for case selection will be presented.

Poster 5 The Office Tinting of Soft Contact Lenses *Patrick Caroline, Ronald E. Smith, MD, David J. Schanzlin, MD, Los Angeles, CA; *Boyd I. Freed, Sheridan, WY

A new device will be presented for in-office tinting of soft contact lenses. The device, only slightly larger than a soft lens vile, tints 11.5 mm of any soft lens in less than three minutes. A 4-mm clear central pupil is also possible. Animal and clinical results will be presented.

Poster 6 Epithelial Iron Line Developing in the Donor Cornea Post keratoplasty S. Lance Forstot, MD, Denver, CO; Robert Abel, Jr., MD, Wilmington, DE

Iron deposition in the inferior corneal basal epithelial layer appears to be a physiologic process (Hudson-Stahli line). Pathologic intraepithelial iron deposition occurs at the base of conical corneas (keratoconus-Fleischer ring), parallel to the head of a pterygium (Stocker line), anterior to a filtering bleb (Ferry line), and is frequently observed near corneal leukomas from a variety of origins. We have observed an­other acquired epithelial iron line developing in the donor cornea following transplantation. It is seen inside the suture line at the edge of the mild ridge caused by the tension of the suture-maintaining graft wound apposition. Careful obser­vation indicates the line may be seen at the slit lamp as early as three months postkeratoplasty.

Topographical abnormalities of the corneal or limbal surfaces, as well as lid-globe relationships, appear to play a role in the development of these iron lines. A descrip­tive term for the general phenomenon may be "corneal topographferrin. "

Poster 7 The Effect of Corneal Edema on the Healing Rate of Epithelial Defects *Charles L. Heaton, MD, David Lamberts, MD, *Frank J. Holly, PhD, Lubbock, TX

This study investigated the effect of corneal edema on the rate of healing of epithelial defects in rabbits. No major dif­ference in healing rates between the edematous and control eyes were found in the first 46 hours. Subsequently, half of the edematous corneas exhibited abnormalities in healing, manifested by incomplete epithelial covering or breakdown after apparent healing. The regenerated epithelium in the edematous cornea easily peeled off in sheets 10 days after the denuded areas were created, reflecting a lack of ad­hesion between the epithelium and the underlying basement membrane. The results and their clinical significance will be discussed.

* By invitation

Poster 8 Blindness in Rural Egypt: A Cluster Survey' * Ahmed Korra, MD, Alexandria, Egypt; Chandler R. Dawson, MD, San Francisco, CA; *M. E. Said, MD, *M. K. EI Shazly, MD, *S. Khadiga, MD, *J. Schachter, PhD, Alexandria, Egypt

Blindness has long been known to be excessively frequent in Egypt. In our randomized cluster survey of the rural population in one Egyptian province, of 8000 people exam­ined, 1.8% had visual acuity less than 3/60 in the better eye. Although 15% of those under 50 years of age were affected, more than half the blind were under 60. Cataract contributed to blindness in 43%, corneal opacity or phthisis in 35%. Trachoma was highly prevalent in children and 2% of the total had trichiasis or entropion. The major causes of blind­ness in Egypt, then, are either preventable (corneal opacity) or easily curable (cataract).

Poster 9 In Vivo Specular Microscopy of Edematous Human Corneal Epithelium with Light and Scanning Electron Microscopy Correlation *Lawrence E. Lohman, MD, Gullapalli N. Rao, MD, Rochester, NY; Ram:esh C. Tripathi, MD, PhD, Chicago, IL; James V. Aquavella, MD, Rochester, NY

With the development of new specular microscopes, it has become possible to photograph the human corneal epithe­lium in vivo. We display photographs taken with the Konan specular microscope during examination of the edematous human corneal epithelium of 12 eyes in vivo. Four recipient buttons of transplanted eyes were further evaluated with light and scanning electron microscopic techniques. The earliest finding is a mesh-like appearance which may be due to outlining of basal cells. Increasing edema causes a pro­gressive loss of sharp surface-cell outlines, followed by bul­lous fluid collections at various corneal layers, often outlined by stretched epithelial cells.

Poster 10 Results in 320 Penetrating Grafts According to Preoperative Donors' Endothelial Viability Evaluation Enrique S. Malbran, MD, *Roberto E. Fernandez-Meijide, MD, Buenos Aires, Argentina

Poor donors are still reported as a cause of graft failure. Since 1968 we have been using a nonsophisticated and reli­able viability test, based on supravital staining of endothelial cells. The description of the method and our experience among 160 consecutive penetrating grafts, using fresh cor­neas, and 160 consecutive penetrating grafts, using MK­preserved donors will be discussed. When the preoperative test reported a high incidence of viable donor endothelium, the success (crystal clear and normal graft thickness) was 99%, since only one eye in each series resulted in a donor failure.

• SCIENTIFIC EXHIBITS AND POSTERS 89

Poster 11 Ocular Copper Deposition Associated with Pulmonary Carcinoma and Hypercupremia *Neil F. Martin, MD, *Brent G. Petty, MD, *Marilyn C. Kincaid, MD, William R. Green, MD, Lawrence W. Hirst, MD, Walter J. Stark, MD, Baltimore, MD

Hypercupremia, with central deposition of copper in Des­cemet's membrane and lens capsule, rarely has been re­ported in lymphoproliferative disorders (three cases). A 60-year-old white man presented with vision loss and brown corneal and lenticular discoloration. Laboratory investiga­tion revealed hypercupremia secondary to an undiffer­entiated small-cell lung tumor, intermediate cell-type. Pres­ence of copper in the eye is confirmed by atomic absorp­tion spectra and histochemical stains of lens material. To our knowledge, this is the first report of a carcinoma with associated hypercupremia presenting with ocular cop­per deposition.

Poster 12 Radial Keratotomy Instrumentation David J. McIntyre, MD, Bellevue, WA

Precise control of radial incision by use of the corneal template and micrometer-adjusted diamond knife will be shown, including experimental data on the cat cornea.

Poster 13 Histology of Full-Thickness Lamellar Implants in Human Eyes *John C. Morrison, MD, Kenneth C. Swan, MD, Portland, OR

To determine if Descemet's membrane he'lls firmly to re­cipient stroma when full-thickness grafts are implanted into lamellar corneal beds, histologic studies were made of three human eyes enucleated after this type of keratoplasty. All demonstrated healing (collagen bridging) at the graft mar­gins, but large gaps were noted between the grafted Des­cemet's membrane and host stroma. Even a five-year spec­imen had minimal healing, associated with subgraft vas­cularization. Descemet's membrane of full-thickness grafts weakens total graft-host bond as compared to conventional lamellar keratoplasties, and visual acuity may be reduced by subgraft clefts or vascularization.

Poster 14 Frequency of Positive Cultures in Donor Eyes George J. Pardos, MD, *Mary Ann Gallagher, RN, New York, NY

A retrospective study of 4167 donor eyes, processed from January 1979 to December 1980, analyzed the frequency of culture-positive donor eyes. Cultures were taken prior to irrigation with antibiotics. Positive cultures were found in 12.4% of the eyes. The most common pathogens were Staphylococcus epidermidis (66%), Staphylococcus aureus (8%), Enterobacteriaceae (7%), Pseudomonas (6%), Es­cherichia coli (5%), Proteus mirabilis (3%), Streptococcus viridans (2%), Clostridium (1%), and Klebsiella pneumoniae (1%).

Of the 1880 penetrating keratoplasties performed, only

* By invitation

two cases resulted in clinically evident infection (en­dophthalmitis). However, both cases had preoperative and postoperative negative cultures. The implications regarding type and use of antibiotics are discussed.

Poster 15 Oversize Donor Buttons in Corneal Transplantation Surgery Henry D. Perry, MD, New Hyde Park, NY; Gary N. Foulks, MD, Durham, NC

Eighty-six ofthe 120 patients in this study were treated for corneal edema. Their results were compared with a control group (33 patients) with corneal edema treated with equal donor material. The overall results in corneal edema showed fewer wound leaks, less synechias, less serious glaucoma, and steeper corneas in the oversize group. The results in herpes simplex (11) were similar to corneal edema. In keratoconus, the only significant difference between same size (11) and oversize grafts (12) was steeper corneas in the oversize group (45.13 diopters) versus the same size group (40.75 diopters, P < .01).

Poster 16 The Treatment of Keratitis Sicca with Sodium Hyaluronate (Healon®) Frank M. Polack, MD, Gainesville, FL; *Endre Balazs, MD, New York, NY; *M. T. McNiece, Gainesville, FL

Sodium Hyaluronate (Healon®) diluted to 0.05% or 0.1% was used as tear replacement in 17 patients with severe keratitis sicca. They had persistent ocular pain and photo­phobia, and were using drops or ointments as frequently as every 5 minutes. The 0.1% dilution afforded instant symp­tomatic relief to all patients, who found the drops better than saline preparations. Half of the patients required the appli­cation of drops at least as frequently as every hour. The other half of the patients, with less severe disease, used the drops every two to three hours. Fluorescein was used to determine the presence of the mucopolysaccharide sub­stance over the cornea.

Poster 17 Immune Suppression of Corneal Melting in Rheumatoid Arthritis John J. Purcell, Jr., MD, St. Louis, MO

Six patients with rheumatoid arthritis and severe corneal melting were treated with low dosage chlorambucil (2-5 mg/day for six weeks).

All patients stopped melting, and all' subsequently were intensely less photophobic and required less artificial tear preparations. No further melting has occurred. No alteration in articular symptoms occurred, but markedly lessxerosto­mia was noted. Increased tear production occurred in three patients. No serologic alterations were found to account for this. Lymphocyte stimulation test with cornea, cornea epi­thelium, corneal stroma, and sclera were normal in three patients.

Although the corneal melting seen in rheumatoid disease is extremely variable and may cease on its own, the dramatic clearance of corneal melting indicates that immune suppres­sion may aid in the management of this condition.

90 OPHTHALMOLOGY • SEPTEMBER 1981 • PROGRAM SUPPLEMENT

Poster 18 Ocular Ferning Test: A Qualitative Test for Mucus Deficiency Khalid F. Tabbara, MD, *Mas Okumoto, San Francisco, CA

The Ocular Ferning Test is a simple, inexpensive test for the evaluation of mucus deficiency ofthe eye. We studied 72 patients: 44 had normal tear functions and 28 had mucus deficiency (Steven-Johnson syndrome, ocular pemphigoid, cicatrizing conjunctivitis). Conjunctival scrapings obtained from each patient were spread over a clean, dry glass slide. Mucus ferning (arborization) was observed in 87% of the specimens obtained from patients with normal tear func­tions. Ferning was studied by histochemical staining, light microscopy, and scanning electron microscopy. Of the pa­tients with mucus deficiency, 20 (71 %) had a negative ferning test (absent mucus arborization).

Poster 19 Punctal Occlusion Thomas O. Wood, MD, *Ron Fredericks, MD, Memphis, TN

Nineteen patients underwent punctal occlusion. Pre­operative Schirmer tear test varied from 0 to 11 mm. None of the patients complained of epiphora postopera­tively. Symptomatic improvement was seen in 17 (89%) of the patients. One third of the patients discontinued artificial tears postoperatively. Slit-lamp examination revealed reso­lution of filaments and reduction of superficial punctate staining. Four patients (21%) had the puncta recanalize. Two (10%) required repeat occlusion.

Poster 20 Taking the Mystique Out of Low Vision *Barbara Brown, Malcolm N. Luxenberg, MD, Augusta, GA

This poster will include a photographic presentation of the Low Vision Clinic at the Medical College of Georgia, ex­pounding the benefits of a multidisciplinary approach to par­tially sighted patients. Accompanying the poster will be handouts-containing pertinent questions and answers about low-vision care, a suggested format for low-vision services in an ophthalmology practice, and useful information on ser­vices and materials available. The purpose of the presenta­tion is to encourage residents and practicing ophthal­mologists to adopt a positive approach to the problems of low-vision patients, which will enhance the availability and quality of this important patient care service.

Poster 21 A Vector Notation for Refraction *Lawrence S. Evans, MD, PhD, Maywood, IL

Finding the difference of two refractive errors in spherocylinder notation, when the cylinder axes differ, is a lengthy calculation. We present a transformation to a three­dimensional vector notation that permits two refractions to be added or subtracted by adding or subtracting respective components. This permits rapid comparisons and interpre­tations, which may be otherwise obscured. When the powers of the three components are given by their meridional root­mean square averages, the length of the vector becomes the Index of Ametropia of Safir and Kulikowski. This notation

* By invitation

may facilitate analysis of refractive errors and keratometry data. The transformation and its inverse are easily performed on programmable calculators.

Poster 22 Custom-Designed Soft Contact Lenses Leroy G. Meshel, MD, San Francisco, CA

Custom-designed soft contact lenses have been fabricated to solve various problems which cannot be met by commer­cially available lenses. This paper will describe indications, fabrication, and clinical experience with lenses made for patients with unusual abnormalities, such as extreme hyperopia in children, filtering blebs, subluxated lenses, corectopia, and corneal topographical abnormalities.

Poster 23 Think Light: Acuity Luminance Functions in the Visually Handicapped Robert V. Spurney, MD, *Catharine K. Christiansen, Cleveland, OH

The density offunctioning retinal elements (cones), not the density of the elements per se, according to Hecht (1928), determines acuity of vision. The staggered sensitivity of cones explains the increasing acuity as luminance increases; when all available cones are functioning, acuity is maximum. Sloan (1973) has recently reported data on acuity-luminance relationships in patients with macular disease, emphasizing that some require unusually high light intensities for maximum acuity. Recent studies in Cleveland support this observation. Data from these studies are presented. Also, inexpensive practical means of providing intense illumina­tion are demonstrated.

Poster 24 Photic Maculopathy Secondary to Short Circuiting of A High-Tension Current *Everett Ai, MD, *Thomas W. Gardner, MD, *Martin Chrobak, David Shoch, MD, Chicago, IL

A patient was examined following accidental exposure to the flash of a high-tension short circuit. While the initial examination was normal, approximately 24 hours later he developed a greyish-yellow spot within each anatomic foveola. Fluorescein angiography demonstrated a ring­shaped pattern of hyperfluorescence, corresponding to the margins of the lesions. The spots faded over several days and were eventually replaced by reddish areas of pigment epithelial atrophy with central dark zones. The evolution of these lesions parallels that seen in solar retinopathy. As such, they probably result from a photochemical injury to the retina and pigment epithelium.

Poster 25 Vitrectomy for Ocular Trauma: A Schematic Approach Arthur W. Allen, Jr., MD, San Francisco, CA

Indications for vitrectomy in anterior and posterior seg­ment ocular trauma are often confusing to the practitioner because of the many variables involved. Isolation of the type of injury, the nature of the wound, the presence of lens in­jury, and the occurrence of a vitreous hemorrhage with a flow-diagram technique is a useful organizational tool. Using it, the ophthalmologist can decide on primary treatment in a logical way.

• SCIENTIFIC EXHIBITS AND POSTERS 91

Poster 26 Pigmentary Patterns of the Peripheral Retina *James V. Bastek, MD, Culver City, CAj *Eliot B. Siegel, MD, Bradley R. Straatsma, MD, *Robert Y. Foos, MD, Los Angeles, CA

To enhance the clinical evaluation of the peripheral fun­dus, pigmentary patterns of the peripheral retina were studied in 1000 eyes obtained at autopsy. Pigment patterns were identified by gross examination, correlated with his­topathologic abnormalities, and statistically analyzed with respect to age at time of death, sex, race, location, and bilat­erally. Clinical characteristics and implications of these age­related patterns of degeneration are discussed.

Poster 27 Pattern Dystrophies of the Retinal Pigment Epithelium John C. Cavender, MD, San Francisco, CAj *Everett Ai, MD, Chicago, IL

Several recent articles in the ophthalmic literature have focused attention on the various patterned dystrophies of the retinal pigment epithelium. This group of disorders shares significant characteristics, both clinically and pathophys­iologically; however, the absolute relationship between the various dystrophies remains elusive. In order to avoid further proliferation of new descriptive names for each pattern, Marmor and Byers suggest that they all be referred to as "pattern dystrophies of the pigment epithelium." We agree with this approach. Furthermore, on the basis of in­heritance, clinical characteristics, fluorescein angiography, and electrophysiological and psychophysical testing, we be­lieve that this group of hereditary macular dystrophies con­stitutes a family of pigment epitheliopathies that lie on a continual spectrum. We herein list these dystrophies and present the findings which we feel support our contention.

Poster 28 A Simple Armrest for Intravenous Injection in Fluorescein Angiography Melvin I. Freeman, MD, *Horst Seibold, Seattle, W A

Fluorescein angiography is an integral part of ophthalmic practice. Fundus studies can be compromised by difficulty in maintaining camera proximity and patient's arm position, during intravenous fluorescein injection. A simple plastic armrest was designed for rapid attachment to either side of the patient holding bar of the Zeiss fundus camera, allowing stabilization of either of the patient's arms in the appropriate position for antecubital venous injection. The armrest allows the photographer-clinician flexibility during injection of the dye, yet prevents the patient's arm from inappropriate movements with resultant needle dislodgement and dye extravasation.

Poster 29 Blood Flow Monitoring in the Optic Nerve Head and Choroidal Microcirculation *Juan E. Grunwald, MD, Stephen H. Sinclair, MD, *Charles E. Riva, DSc, Philadelphia, PA

A fundus camera laser Doppler technique has been devel­oped to noninvasively determine the average speed of blood in the microcirculation of the human optic nerve head and

* By invitation

choroid. Changes in speed of red blood cells can be moni­tored quasicontinuously, allowing the investigation of the effect of acute changes in intraocular pressure (lOP). A step change in lOP induces in the optic nerve an autoregulatory response, which is completed within 2 to 3 minutes. Mea­surements performed over a 30-minute period show random fluctuations of blood speed, which are larger in the choroid than in the optic nerve.

Poster 30 Therapeutic Mechanisms of Intraocular Gas Thomas A. Hanscom, MD, Los Angeles, CA

Although intraocular gas has been used in vitreoretinal surgery for many years, the therapeutic mechanisms in­volved in the use of gas have received little attention in the literature. Intraocular gas can seal retinal breaks by surface tension, control intraocular hemorrhage, and push the retina against the pigment epithelium. A classification of the ac­tions of intraocular gas will be proposed. Clinical examples of these mechanisms will be given. Using an autopsy eye model, the actions of intraocular gas will be demonstrated. These actions will be explained using principles from elementary physics.

Poster 31 Flying Corpuscle Macular Test Performed with the Slit Lamp John R. Karickhoff, MD, Falls Church, VA

Projected, pure blue light allows the patient to observe the presence or absence of his own moving, macular white blood cells. With cataracts and vitreous opacities, this test remains remarkably accurate in predicting postoperative visual acuity. It is not necessary to perform the test with an expen­sive, special projector. The test can be performed in 10 sec­onds using any slit lamp as the projector, and simply holding the proper filter in the light beam.

Poster 32 Clinical Chorioretinal Reaction to Krypton Laser Photocoagulation King Y. Lee, MD, Matthew C. Ziemianski, MD, William F. Case, MD, Felix N. Sabates, MD, Kansas City, MO

Clinical chorioretinal scars were created by Krypton laser photocoagulation in preparation for an en bloc excision of a choroidal malignant melanoma. Because of observed rapid growth of the tumor, an enucleation was done. Presented herein is a description of how the Krypton reaction causes disruption of the outer nuclear and pigment epithelial layers of the retina and obliteration of the underlying choroidal ves­sels. The nerve fiber layer was remarkably free of visible photocoagulation effects, confirming our clinical impres­sions in the Krypton laser-treated patients.

Poster 33 Dominant Retinitis Pigmentosa: A Clinicopathologic Correlation *Kenneth Meyer, MD, John Heckenlively, MD, Manfred Spitznas, MD, *Robert Foos, MD, Los Angeles, CA

Autopsy and clinical studies were performed in a· family with dominantly inherited retinitis pigmentosa. The eyes of two senior members of the family were obtained for his-

92 OPHTHALMOLOGY • SEPTEMBER 1981 • PROGRAM SUPPLEMENT

topathologic study, while three other family members were studied clinically. All family members studied had visual field loss, nyctalopia, and a spectrum of pigmentary disrup­tion. There was variable expressivity of pigmentary migra­tion, foveal atrophic changes, surface wrinkling retinopathy, choriocapillaris atrophy, drusen, vitreous synchisis, and optic pallor. Three specific zones of retinal and retinal pig­ment epithelial changes were identified histopathological­ly. A comparison of clinical and pathologic findings is presented.

Poster 34 Central Contrast Sensitivity for Early Detection of Maculopathy *Suanada Mitra, PhD, James Price, MD, PhD, Lubbock, TX

Recent studies indicate the importance of contrast sen­sitivity in the evaluation of macular function. With electroni­cally generated sine-wave gratings and a rapid precise method, we have measured both normal patients and those with macular problems. We were able to demonstrate that patients with visible macular changes, but with little or no central vision loss, showed significant changes in their con­trast sensitivity. Their spatial frequency loss was similar to that seen with optic neuritis. Our method and results for these patients will be presented.

Poster 35 Macular Coloboma and Congenital Cytomegalovirus Infection *Michael A. Novak, MD, *Douglas A. Jabs, MD, Robert B. Welch, MD, Baltimore, MD

A macular coloboma (dysplasia) is a round or oval, sharply delineated defect. It may result from intrauterine infection by toxoplasmosis, cytomegalovirus (CMV), or other viruses, as proposed by Mann in 1957. Although this hypothesis is widely accepted, these two cases represent the first documented association of macular coloboma with congeni­tal cytomegalovirus infection. Both infants, examined within 10 days of birth, have stigmata of intrauterine CMV infec­tion, including intrauterine growth retardation, microceph­aly, peri ventricular calcifications, seizures, hepatospleno­megaly, thrombocytopenia, and jaundice. CMV antibody titer is greater than 1 :256 in both. Although no intraocular inflammation has been present, both infants have unilateral macular coloboma.

Poster 36 The Ruptured Globe: Has Management Improved? *Paul Sternberg, MD, *Eugene de Juan, Jr., MD, A. Edward Maumenee, MD, Baltimore, MD

Over the past 10 years, over 150 patients have been treated at our institution with a diagnosis of scleral rupture. The majority had sharp injuries with lacerations anterior to the equator. During this period microsurgical wound closure, early vitrectomy, and encircling element placement often have been used. Analysis of data reveals an improvement of visual prognosis in blunt scleral rupture, when compared to the previous 18 years. Sharp injuries anterior to the muscle insertion have the best prognosis.

* By invitation

Poster 37 Carotid Artery Disease and the Eye Hunter R. Stokes, MD, *Richard George, Florence, SC

This poster demonstrates the important points emphasized in the instructional course presented by the senior author at recent Academy meetings. The signs of carotid disease with which the ophthalmologist should be familiar, in order to evaluate and appropriately refer such patients for definitive treatment, are illustrated.

Poster 38 Human Retinal Vessels in Tissue Culture *Brenda J. Tripathi, PhD, Ramesh C. Tripathi, MD, PhD, Chicago, IL

We have successfully grown the vascular cells of human retinal vessels in tissue culture, using 3 to 7 days postmortem eyes. We demonstrate that, despite morphologic changes which ordinarily may be considered inconsistent with sur­vival, the vascular cells from cadaver eyes stored at +4 C remain viable for several days, whereas the nervous tissue of the retina degenerates irreversibly within 48 to 72 hours. The usefulness of this model in the study of human retinal vas­culopathies, especially diabetes, is presented.

Poster 39 Visual Disturbances and Vitamin Deficiency in Two Short-Bowel Syndrome Patients *Bruce M. Wolf, *Lyn Howard, Wichard A. J. Van Heuven, MD, *Richard Chu, PhD, *Lars Ovesen, MD, Albany, NY

Two men with exteme short-bowel syndrome due to Crohn's disease developed visual disturbances secondary to fat-soluble vitamin deficiency. Patient 1 presented with night blindness while being administered 3000 IU of retinol per 24 hours. Subsequent in vitro studies demonstrated disappear­ance of vitamin A from the nutrient solution used for total parenteral nutrition, due to sorption onto the plastic con­tainer and probable oxidation. Patient 2 presented with mas­sive bilateral scotomata, retinal pigment epithelium degener­ation, and an ataxic gait in association with severe vitamin E deficiency, which cleared after vitamin E supplementation over 24 months of vitamin repletion.

Poster 40 A Modified Amsler Grid Lawrence A. Yannuzzi, MD, New York, NY

A modification of the Amsler grid has been devised for self-assessment testing in patients with macular disease. It will serve as a useful indication of foveal involvement in patients with exudative manifestations. Through early de­tection of disturbances in central vision, ophthalmologists can be contacted at the earliest sign of foveal involvement. It is hoped that this in turn will result in early recognition of subretinal neovascularization and increase the number of "treatable lesions." Although the modified Amsler grid has extremely good sensitivity and is ideal for patients who are traveling, or for some other reasons find it inconvenient to use the larger Amsler grid, it is not recommended as an absolute alternative.

Poster 41 Giardiasis and Ocular Inflammation David L. Knox, MD, Baltimore, MD

• SCIENTIFIC EXHIBITS AND POSTERS 93

Giardia Amblia were found by stool examination in eight of 70 (11.4%) uveitis patients admitted to hospital for diag­nostic studies in a three-year period. An additional 10 pa­tients have been found to have giardia. Ocular inflammation syndromes occurred as follows: pars planitis-2 cases, and keratitis, episcleritis, iritis, exudative retinal detachment, choroidosis, chorioretinal atrophy, and nutritional amblyopia-one case each. All patients with ocular inflam­mation should be studied for intestinal parasites.

Poster 42 Early Enucleation in Sympathetic Ophthalmia *Jane R. Lubin, MD, Daniel M. Albert, MD, Taylor R. Smith, MD, Charles D. J. Regan, MD, *George Moo Young, MD, Boston, MA

Data from 105 cases of sympathetic ophthalmia show that early enucleation of a blind eye may improve visual prog­nosis. Nine cases enucleated within two weeks of onset of symptoms are presented, in which the inflammatory re­sponse subsided and never recurred. Of patients enucleated within two weeks 79% retained 20/70 vision or better, whereas only 52% enucleated after two weeks did so. The beneficial effect of early enucleation was independent of factors which affect visual prognosis: corticosteroid treat­ment, severity of inflammation, giant-cell infiltration, etc.

Poster 43 Dextrostix: A Rapid Diagnostic Test to Differentiate Sterile from Bacterial Endophthalmitis Ira G. Wong, MD, H. Bruce Ostler, MD, *Ingrid Swan, San Francisco, CA

Whenever an ocular inflammatory reaction seems greater than one would expect from the extent of surgery or the degree of trauma, a major diagnostic challenge arises in dif­ferentiating an infectious etiology from factors contributing to a sterile inflammatory response.

This study demonstrates clinically and experimentally in rabbits that, in cases of a sterile inflammatory reaction, the glucose level exceeds 40 mg/dl, whereas the intraocular glucose level is markedly decreased in infectious en­dophthalmitis. Aqueous and vitreous glucose levels can be measured in less than five minutes with glucose reagent strips (Dextrostix) and a reflectance photometer, and the results are highly reproducible.

Poster 44 Choroidal Malignant Melanoma: Ultrasonographic Histopathologic Correlation *Kamal Zakka, MD, *Marci L. Findl, Barry M. Kerman, MD, *Robert Y. Foos, MD, Los Angeles, CA

The present study was undertaken to evaluate the efficacy of determining choroidal malignant melanoma cell types based on selected ultrasonographic characteristics. We re­ceived the ultrasonographic studies of a total of 33 his­topathologically proven choroidal malignant melanoma cases. Ultrasonographic features analyzed included internal reflectivity, vascularity, shape, elevation, orbital shadowing, and choroidal excavation. Histopathological features studied were cell type, vascularity, and pigmentation. Each of the

* By invitation

features described was correlated, and it was determined that internal reflectivity best correlated with cell type, al­though these values were not found to be statistically signifi­cant (P < 0.10). Hence, based on these results, we feel that the present ultrasound techniques are not an effec­tive diagnostic tool in differentiating cell types in malignant melanoma.

Poster 45 Malignant Melanoma: Metastatic Patterns in an Autopsy Population and Clinical Evaluation of Metastatic Disease *Kamal A. Zakka, MD, *Robert Y. Foos, MD, Bradley R. Straatsma, MD, *Carlos A. Omphroy, MD, *Kathryn M. Gardner, MD, Los Angeles, CA

This report is the second part of an analysis of 92 malig­nant melanoma cases from a series of 12,383 consecutive autopsies. Twelve cases had a primary ocular melanoma, 76 cases had a primary nonocular melanoma, and four cases had an unknown primary site. A detailed analysis of meta­static disease patterns is considered in both ocular and nonocular melanoma cases. The distribution of metastasis was similar in both ocular and nonocular melanomas (liver, lung, and kidney), although nonocular cases more frequently involved the brain (P = 0.03). A clinical protocol describing the search for metastatic disease is presented.

Poster 46 Computer Analysis of the Optic Disc in Glaucoma *V. Ralph Algazi, PhD, John L. Keltner, MD, *Chris A. Johnson, PhD, Davis, CA

This study examined glaucomatous cupping of the optic disc using computer image-processing techniques. A popu­lation of 156 glaucoma and ocular hypertensive patients was followed for an average of four years using stereophotog­raphy and extensive static perimetry. Sequential evaluations of the optic cup were performed by dynamic display of non­processed images which emphasize change, and quantitative analysis of optic cup geometry obtained by digital processing of stereo images. A demonstration of both techniques will be presented for three patients exhibiting progression of glaucomatous damage. Photographic artifacts due to illumi­nation, focus, camera angle, and camera differences (Zeiss, Topcon, Donaldson) will be described.

Poster 47 Acute Elevations of Intraocular Pressure in Pigmentary Glaucoma Terry J. Bergstrom, MD, Ann Arbor, MI

Acute elevations of intraocular pressure in patients with pigmentary glaucoma have been alluded to in the ophthalmic literature. The author's experience with three patients dem­onstrating this fluctuation in intraocular pressures is outlined in this presentation.

The characteristic findings in patients with pigmentary glaucoma will be noted. Emphasis, however, will be placed on the episodes of acute intraocular pressure elevation, with review of the incidence of these episodes, their probable etiology, the signs and symptoms associated with their oc­currence, their natural history, and the possibilities for treatment to prevent their occurrence.

94 OPHTHALMOLOGY. SEPTEMBER 1981 • PROGRAM SUPPLEMENT

Poster 48 A Trabeculectomy Ab Interno *Reay H. Brown, MD, *William E. Bruner, MD, Baltimore, MD; *David B. Denham, Miami, FL; Harry A. Quigley, MD, Baltimore, MD

A glaucoma filtering operation has been designed in which a trabeculectomy is performed ab interno with a high-speed, oscillating trephine. The "trabecuphine" is a vitrectomy­style instrument capable of cutting with simultaneous irriga­tion and aspiration. The operation creates a full-thickness scleral fistula without opening the overlying conjunctiva. It has been performed successfully on 12 cynomolgus monkey eyes. Postoperatively, the animals have exuberant circum­ferential bleb. Flat anterior chambers have not been encoun­tered. The operation will be illustrated with photographs and drawings. Complications and histopathology will be pre­sented.

Poster 49 Pigmentary Glaucoma: A New Theory, Further Studies David G. Campbell, MD, ·Zoe A. Fitzgerald, PhD, *Mark Dunbar, MD, *Robert Tucker, MD, *Robert Blasberg, MD, Atlanta, GA '

Twenty age- and myopia-matched patients with pigmen­tary glaucoma were compared to 20 patients without. All the pigmentary glaucoma patients had posteriorly concave irides, whereas three of 20 of the non-PG group did. The central and peripheral anterior chambers were measured and were statistically deeper in PG than in the matched myopes. EM study of a PG trabeculectomy specimen confirmed pre­vious findings of damaged and degenerated endothelial cells and beams. Pigment injected into monkey eyes was rapidly engulfed by endothelial cells, leading, in some cases, to their degeneration. PO was found to be rare in blacks. Black irides, microscopically, were found to be statistically thicker and, therefore, perhaps more rigid than white irides.

Poster 50 The Natural Course of Chronic Open-Angle Glaucoma *Tord Jerndal, MD, Gothenburg, Sweden

The natural course of open-angle glaucoma has a pro­tracted crescendo of nerve fiber loss. Two major glaucoma factors are illustrated: elevation of the intraocular pressure, and local hypoxemia in the optic nerve head. These factors may operate independently, but often occur in combination. Two schematic diagrams illustrate the effects of each of these factors. The poster is introduced with three statements by Pitts Crick and concluded with four questions to the spectators.

Poster 51 Displacement of the Lamina Scleralis with Pressure Elevation Norman S. Levy, MD, PhD, *Elaine E. Crapps, *Rob C. Bonney, Lake City, FL

A platinum wire was inserted into the optic nerve and the adjacent sclera of human eye bank eyes. The amount and location of maximal displacement of the wire in each of these tissues were measured radiographically, following lOP ele-

* By invitation

vation. The portion of the wire located within the center of the optic nerve displaces significantly more than that elsewhere. Sixty-seven percent ofthe total displacement oc­curs after a 15 mm Hg elevation.

Poster 52 A New Operation for Neovascular Glaucoma Stanley S. Schocket, MD, Richard D. Richards, MD, Baltimore, MD

One end of a small silicone tube is placed in the anterior chamber via trabeculectomy, and the other end is connected to the groove of a #40 silicone band that encircles the globe behind the rectus muscles, with the grooved side next to the sclera. The operation was performed on seven eyes in five patients with neovascular glaucoma, with a follow-up of three to 11 months. The average intraocular pressure on maximum medical therapy prior to operation was 47 mm Hg (range, 35-55 mm Hg); postoperatively the average de­crease was 32 mm Hg (range, 28-40 mm Hg).

Poster 53 Contour Photography of the Optic Disc: A New Method for Evaluating Glaucomatous Damage *Jerrold M. Shapiro, PhD, Mohandas M. Kini, MD, PhD, Boston, MA

Contour photography is a new technique for mapping the topography of the optic disc. Narrow stripes of light are projected onto the retina and optic disc, and the stripes are photographed from an angle by a fundus camera. The pro­jector is an easily mounted accessory to the fundus camera. The standard deviation of its surface height measurements is 15 microns. Patient acceptance has been excellent.

Poster 54 Senile Exfoliation Syndrome *Alfred M. Solish, MD, *Kenneth T. Meyer, MD, Robert E. Christensen, MD, *Robert Y. Foos, MD, Los Angeles, CA

Senile Exfoliation Syndrome (SES, "pseudoexfoliation of the lens"), an important cause of glaucoma worldwide, was studied in a Southern California autopsy population of 6000. The prevalence and morphologic features (gross, light mi­croscopic, scanning EM) of SES were examined. Close at­tention was paid to the characteristic pattern of exaggerated iris rogation, iris pigment epithelium atrophy, and pigment deposition in "Sampaolesi's line." SES was found in 0.75% of the 6000 cases, 3.1% of those over 60,12.9% of those over 80, a prevalence similar to that reported in Scandinavia. SES appears to be more common in the United States than previ­ously recognized.

Poster 55 Facial and Episcleral Hemangiomas *John R. Wood, Major, USAF, MC, MD, San Antonio, TX; * Joseph Eshaghian, MD, Los Angeles, CA; Charles D. Phelps, MD, Iowa City, IA

Twenty-six consecutive patients with facial hemangiomas and no ocular complaints were examined. Screening re­vealed four patients who were "glaucoma suspects" (lOP> 21 or asymmetric cupping), and one patient with an unknown choroidal hemangioma. Of the 17 patients with upper lid in­volvement, eight had episcleral hemangiomas. All patients with episcleral hemangiomas had increased episcleral ve-

• SCIENTIFIC EXHIBITS AND POSTERS 95

nous pressure within the hemangioma, five of eight had in­creased intraocular pressure, two of eight had asymmetric cupping, and one had the unsuspected choroidal heman­gioma. This small study suggests a significant incidence of ocular pathology in those patients with both facial and episcleral hemangioma.

Poster 56 Aspirin and Senile Cataracts in Arthritis Populations Edward CotHer, MD, *Bart Toftness, *Domenic V. Cicchetti, PhD, New Haven, CT

Retrospective studies were conducted on the prevalence and degree of cataract in populations receiving aspirin. Cataract is defined as axial lens opacity causing visual acuity decrease to 20/30 or less. The prevalence of cataract among 80 patients with rheumatoid arthritis (RA) alone or with diabetes, receiving or not receiving aspirin, was determined. In age-matched groups, cataract was more prevalent (P < 0.005) among non-aspirin takers.

Cataracts from 126 patients with osteoarthritis alone or diabetes were classified from photographs. Aspirin delayed cataract formation in diabetic and nondiabetic cataracts. The inter- and intraobserver variability was determined by weighed kappa analysis.

Poster 57 Pars Plana Lensectomy: Update Louis J. Girard, MD, Houston, TX

Pars plana lensectomy by ultrasonic fragmentation is a method of cataract extraction which can be performed at any age and in any type of cataract: congenital, traumatic, senile, complicated, hypermature, cataract and glaucoma filter, subluxated, dislocated, RLF, and PHPV. The technique eliminates 70% of the complications of intracapsular or ex­tracapsular extraction. Visual results show 98% of non­pathological eyes achieve 20/20-20/40 vision with an inci­dence of retinal detachment of 1% and chronic cystoid maculopathy of 1%.

Poster 58 Absence of Ocular Pathology in Monkeys Exposed to Microwaves Robert A. Gordon, MD, *Robert D. McMee, PhD, New Orleans, LA

Microwaves have been incriminated as a cause of cataracts in humans. Unfettered rhesus monkeys were trained to expose their face and eyes to pulsed microwave radiation at a frequency of 9.31 GHz. Performance of an operant response required the monkeys to maintain their heads within the field of the radiation source. Initially four monkeys were self-irradiated at an average power density of 400 mW/sq cm, during 24 sessions of 15 minutes each, and then observed for six years. Twelve monkeys were similarly irradiated at 150 mW/sq cm during 120 sessions and observed for four years. Observations of animal behavior and repeated biomicroscopic examinations have revealed no evidence of cataract or other ocular damage from microwaves. The ex­perimental model will be described, and the results will be discussed with regard to the possible human implications.

* By invitation

Poster 59 An Inexpensive Operating-Room Television System *G. Robert Hampton, MD, Robert D. Reinecke, MD, Albany, NY

By making simple modifications to popular "home video" equipment, an inexpensive, sophisticated television monitor and recording system is now within the budget of almost every operating room. The system includes one color camera on the operating microscope, and a second one on a pivoting arm hung from a ceiling-mounted track above the patient's head, for procedures not requiring the microscope. Video is displayed on two color monitors, one in the operating room and the other outside for teaching purposes. Equipment list, prices, modification details, and a system schematic will be presented.

Poster 60 Potential Acuity Meter Using a Minute Aerial Pinhole Aperture * John S. Minkowski, MD, David L. Guyton, MD, Baltimore, MD

A simple optometer system mounted on a slit-lamp micro­scope projects a calibrated visual acuity chart through an aerial pinhole aperture. The aerial aperture is approximately 0.15 mm in diameter and virtually free of diffraction artifact. Minute "windows" are easily located in immature cataracts or diseased corneas, with visual acuity typically improving from 20/200 to 20/30.

Of 25 cataractous eyes with known or suspected macular disease prior to surgery, 24 eyes achieved the predicted acuity or better postoperatively, usually within one line of vision. Preoperative testing is simple and rapid, allowing more reliable prediction of postoperative results than previ­ously possible.

Poster 61 Phaco-Ersatz: A New Approach to Cataract Surgery *Jean-Marie Parel, *W. F. Treffers, MD, Henry Gelender, MD, Edward W. D. Norton, MD, Miami, FL

A new approach to cataract surgery uses a technique to remove the lens contents through a small opening made peripherally in the anterior capsule, leaving the remaining capsule and zonules intact, and then refilling the capsule with a transparent, biologically compatible synthetic mate­rial. The lens is morphologically recreated, and the tech­nique is designed to re-establish lens function in situ.

The theoretical model and its evolved surgical procedure are presented. It has potential application to cataract surgery in general and may offer an improved approach to the man­agement of congenital cataracts.

Poster 62 A Retrospective Study of 24 Removed IOLs *Steven B. Siepser, MD, Paoli, PA; Oram R. Kline, Jr., MD, Woodbury, NJ

The poster presents 25 IOLs removed from eyes because of complications or the possibility of further harm from the implant. These criteria have changed as experience with IOLs has increased. The incidence oflens removal was 1.6% in the 1500 cases presently completed in this series. This

96 OPHTHALMOLOGY • SEPTEMBER 1981 • PROGRAM SUPPLEMENT

poster presents what is known about each case with follow-up data. Scanning EM of each lens was done when possible. Endothelial cell counts were done on surviving corneas. Pathology of removed corneas is presented when available. This study is designed to demonstrate complica­tions in the use of intraocular lenses.

Poster 63 Continuous-Wear Soft Contact Lenses in a Nonreferral Population Thomas C. Spoor, MD, *Deanne K. Spoor, *Brenda Skinner, RN, Columbia, SC

To determine the value of continuous-wear soft contact lenses for correction of surgical aphakia in a nonreferral population, we utilized three commercially available lenses (Hydrocurve II®, Permalens®, and Soft-Con®) in a Veterans Administration eye clinic over the past 18 months. To date, we have fitted 85 eyes with an 85-90% success rate (mean follow-up, 6.5 months). The major problem encountered was excessive lens loss, necessitating multiple fittings and re­placements. Ocular complications were minimal and revers­ible. We conclude that commercially available soft contact lenses are a viable alternative to IOL implantation in a non­referral popUlation.

Poster 64 Ring Forceps R. Sloan Wilson, MD, Little Rock, AR

A forceps has been made which can grasp, without slip­ping, the various rings (Fleiringa, etc.) which ophthalmic surgeons apply to the eye. With this forceps on the ring, the surgeon can safely fixate, tort, or rotate the eye for fine movements required in vitrectomy or anterior segment surgery.

The forceps is constructed so that the tips clamp the ap­propriate part of the ring and cannot slide toward the eye, indenting it and reducing corneal visualization. A major ad­vantage is a slide lock which, if applied, prevents finger fatigue during long cases, as well as allowing finer movement of the fingers rotating the eye.

Poster 65 Management of Cerebrospinal Fluid Leaks During Orbital Surgery Henry I. Baylis, MD, Encino, CA; Robert N. Azelrod, MD, Mission Hills, CA; *Nachum Rosen, MD, Los Angeles, CA

Inadvertent penetration into the cranium during orbital surgery may result in intraoperative cerebrospinal fluid leaks. A series of cases such as orbital decompression, dac­ryocystorhinostomy, excision of orbital tumor, and sinus mucocele, all with cerebrospinal fluid leaks, will be pre­sented. The intraoperative diagnosis of cerebrospinal fluid loss, as well as intraoperative and postoperative manage­ment, will be discussed.

Poster 66 Biocompatible Orbital Bone Replacement Richard E. Bensinger, MD, *Elaine Chuang, MD, Seattle, WA

* By invitation

Current periorbital bone repair is done with autogenous material requiring additional operative sites, or 'synthetic material subject to rejection, extrusion, or infection. We have used tricalcium phosphate matrix, which is incorpo­rated into normal periorbital bone. Rabbits had an orbital rim defect repaired by matrix insertion. Comparison with con­trols histologically at three, eight, 24, and 40 weeks showed early encapsulation, osteoid ingrowth, and resorption of the matrix. Substantial replacement with normal bone was seen by 24 weeks. No evidence of inflammation, rejection, or migration was seen. We suggest tricalcium phosphate ceramic as a superior alternative for orbital reconstructive surgery.

Poster 67 Congenital Tarsal Kink Syndrome: A Discussion of Its Management and Etiology Stephen L. Bosniak, MD, Albert Hornblass, MD, New York, NY

The tarsal kink syndrome is a rare form of congenital en­tropion. When it is unrecognized, it presents as a corneal ulceration that does not respond to therapy. We present a case that was initially unrecognized. It responded well after surgical correction. We discuss the possible etiologies of this malformation and the surgical options.

Poster 68 Selected Aspects of Komoto's Syndrome (Congenital Eyelid Tetrad) Norman N. K. Katz, MD, Washington, DC; William R. Rimm, MD, Fort Meade, MD

The congenital eyelid tetrad (CET), originally described by Komoto, consists of ptosis, blepharophimosis, epican­thus, and telecanthus. Current modes of surgical therapy are multidisciplinary and rather empirical. A recent study of the natural history of this condition has revealed that, while epicanthal folds disappear with growth, (improving, cos­metically, the telecanthus) ptosis and blepharophimosis re­main unchanged. The current review of patients with CET focuses on additional interesting features: early (rapid) re­gression, improvement of ptosis and blepharophimosis, overlooked strabismus (pseudo-pseudo strabismus) and oc­casional association of other developmental anomalies. Dif­ficulty in rationalizing proper therapy for CET persists.

Poster 69 Mycormycosis and an Anatomically Designed Orbito-Facial Prosthesis Graham B. Kretchman, MD, *L. Daniel Eaton, MD, *Joe D. Davis, Phoenix, AZ

An unusual case of mucormycosis infection is presented in an otherwise healthy adolescent with head injuries. A large defect of the face followed exenteration of the left orbit, malar complex, and paranasal sinuses. We reviewed the goals of a major facial reconstruction with a prosthesis. A new technology in the design and manufacture of facial prostheses was developed to meet the challenge of rehabili­tation for patients with major facial defects.

• SCIENTIFIC EXHIBITS AND POSTERS 97

Poster 70 Tarsorrhaphy with Catgut Vadreva K. Raju, MD, Morgantown, WV; *Bruce Mathalone, London, England

Surgical fusion of the eyelids (tarsorrhaphy) is an impor­tant and fundamental ophthalmic technique. It is indicated in a variety of corneal conditions to aid the healing process. This procedure also splints the lids and reduces their move­ment to a minimum. Healing is thus aided after lid repair and reconstruction.

A simple method of tarsorrhaphy is described using cat­gut, instead of silk sutures and pegs. This method is faster, esthetically better, and does not need suture removal.

Poster 71 Variations of the Intraocular Pressure with Vertical Gaze August L. Reader, III, MD, San Diego, CA

Intraocular pressures (lOP) were taken on 100 eyes of a normal population in 5° steps, from 20° upgaze to 20° downgaze. The lowest mean pressure was found at 5° down from primary, with the pressures rising steadily up and down from this position (correlation coefficient = 0.99). These changes can be explained by the normal anatomical position of the globe in the orbit when positioned at the slit lamp. In this position, the vertical rectus muscles exert a slight, but detectable, tension, reflected in the lOP.

Poster 72 A New Retractor for Medial Intraconal Orbital Microsurgery *Paul Rehkopf, John S. Kennerdell, MD, *Joseph C. Maroon, MD, Pittsburgh, PA

An anterior medial orbital retractor has been developed using a combination of Druck-Levene and Demartel retrac­tors. Modified teeth retract the medial orbital conjunctiva superiorly and inferiorly, a modified enucleation spoon re­tracts the globe laterally, and copper Demartel adjustable paddle retractors can be fitted to retract the medial rectus medially, and to retract the deeper intraconal orbital fatty tissue superiorly and inferiorly, thus providing superficial and deep four-way retraction for medial intraconal orbital microsurgery.

Poster 73 Periorbital Cellulitis Caused by Human Bite *Martin F. Shulman, MD, Hackensack, NJ; *Edward J. Bottone, PhD, Edward L. Raab, MD, *Jeffrey Odel, MD, New York, NY

Human bite as a cause of ocular and adnexal trauma is unusual, although such injuries occur frequently elsewhere. Management depends on knowledge of the pathogenic or­ganisms that are present in the wounded area. In this report we 1) describe a case of human bite wound of the eyelid; 2) indicate the source and varieties of infectious organisms in such injuries; 3) emphasize the importance of seeking, by appropriate culture techniques, Eikenella corrodens, a rela­tively unknown organism but one of great significance in human bite injuries; and 4) indicate the principles of appro­priate medical and surgical treatment of these wounds.

* By invitation

Poster 74 The Importance of the Nerve Fiber Layer in Ophthalmologic Diagnosis *William P. Blaso, MD, Neil R. Miller, MD, *Terry George, Baltimore, MD

Over the last ten-years, the appearance of the peripapillary retinal nerve fiber layer has become increasingly useful in ophthalmologic practice. Its appearance may enable the physician to recognize early optic neuropathy, differentiate pregeniculate from postgeniculate hemianopias, predict vi­sual field loss in glaucoma, and differentiate congenitally elevated optic discs from acquired optic disc swelling. Most ophthalmologists remain unaware of the specific ophthal­moscopic characteristics of the normal and abnormal nerve fiber layer. Using red-free and color photography, our poster will emphasize the characteristics of normal nerve fiber layer, as opposed to abnormalities that develop when spe­cific types of disc swelling and atrophy occur.

Poster 75 The Suprasellar Cistern: Radiographic Demonstration Terence G. Klingele, MD, Ronald M. Burde, MD, *Mokhtar Gado, MD, St. Louis, Missouri

The configuration of the suprasellar cistern resembles a five-pointed star. These points represent the extensions of the cistern into the following cerebrospinal fluid spaces in clockwise order: the interhemispheric fissure, right sylvian fissure, right and left ambient cisterns, and left sylvian cis­tern, respectively. Between these extensions lie the follow­ing five structures that form the boundaries of the suprasellar cistern in clockwise order: the right rectus gyrus, right uncus, brainstem, left uncus, and left rectus gyrus, respec­tively. The deformity of the suprasellar cistern may be the only computerized tomographic sign of an isodense nonenhancing lesion of the parasellar region. The shape of the normal suprasellar cistern is illustrated by cut brain sec­tion. Clinical cases of isodense lesions of the parasellar re­gion, and their effect on the suprasellar cistern, will be illus­trated.

Poster 76 Optic Nerve Hypoplasia Paul E. Romano, MD, Gainesville, FL

A simple photogrammetric technique using photographs of the fundus and optic nerve can be used to confirm this diag­nosis with as much accuracy, more convenience, and con­siderably less expense than radiographic studies.

Poster 77 Retrobular Optic Neuropathy Associated with Prazosin Therapy * Andrew Schachat, MD, Baltimore, MD

Prazosin is a quinazoline drug used in the management of hypertension. Recently, topical prazosin has been studied in rabbit eyes, where it appears to lower intraocular pressure. Human studies are planned.

I report two cases of retrobulbar optic neuritis, one bilat­eral, associated with oral prazosin therapy. Visual acuity and VER both normalized after drug withdrawal.

98 OPHTHALMOLOGY. SEPTEMBER 1981 • PROGRAM SUPPLEMENT

Poster 78 The Histopathology of an Isolated Optic Tract Hemianopia Thomas J. Tredici, Colonel, USAF, MC, *Robert E. Schmidt, Colonel, USAF, BSC, Patrick S. O'Connor, Lt. Colonel, USAF, MC, San Antonio, TX

A surgically isolated right optic tract section was made in a macaca mulatta monkey. Six months postoperatively, fun­dus photographs documented the distinctive ipsilateral tem­poral and contralateral bow-tie optic atrophy typical of ret­rograde hemianopic degeneration. Histopathologic exami­nation of the retinae, proximal, midorbital, and distal optic nerves and chiasm documented this distinctive pattern of retrograde degeneration in decussating nerve fibers. This, to our knowledge, is the first histopathologic documentation of hemianopic degeneration in an isolated tract lesion.

Poster 79 A Positioning Aid for Eyedrop Administration Robert Ritch, MD, *Edgar Astrove, New York, NY

A visual aid which facilitates drop administration by pa­tients consists of a strip of thin, flexible, 3/4 x 4-inch mir­rored plastic sheet. One end, angled 45 degrees, is adhesive-coated, allowing convenient attachment to the bottom of a squeeze-type dispenser. Precise visual position­ing of the dispenser tip minimizes drop wastage and in­creases accuracy of single-drop instillation. The device is inexpensive, shatterproof, durable, and fits within the origi­nal medication carton. The assembly may be used easily by monocular patients. Patient acceptance has been high.

Poster 80 Teaching Strabismus Diagnosis with the Microcomputer Jonathan D. Wirtschafter, MD, *Joshua J. Wirtschafter, *Timothy M. Dunham, MD, Minneapolis, MN

The Electromechanical Strabismus Cover Test Dem­onstrator provided interactive instruction by simulating horizontal heterodeviations. Its functions have been re­placed and extended with an inexpensive disk which runs on a microcomputer. Advantages of this format include ability to teach a large group with video monitors, ability to sepa­rately diagnose errors in the performance, interpretation of the cover test by students, and ability to provide graded educational packages for lay persons or health professionals.

Poster 81 Aqueous Glucose Sensing by Optical Rotation Wayne F. March, MD, *Bernard Rabinovitch, PhD, Oklahoma City, OK

Correlation was made between the blood glucose assay (BGA) and the aqueous glucose concentration as determined by chemical assay (AGA) and by optical rotation determina­tion (ARD). ARD was obtained by paracentesis directly into a microcell. BGAIAGA = 1.644 ± .364 (SD), which differs from that reported by Kinsey as 1.235. AGAIARD = 1.009 ± .333. In-our hands, ARD was more accurate an indication of aqueous glucose concentration than AGA. These data will be

* By invitation

discussed in terms of progress toward a noninvasive glucose sensor.

Poster 82 Short-Term Ophthalmology: Experiences in Dominican Republic and Honduras Fleming A. Barbour, MD, Flint, MI; Douglas W. H. Harper, MD, Toronto, Ontario

This poster will present by picture and words a workable program of short-term ophthalmology (two-week periods), as done in Honduras and the Dominican Republic, including recruiting volunteers, methods of screening and examining patients, surgery done, and the results of surgery. Program sponsored by the Medical Group Missions of the Christian Medical Society.

Poster 83 Adventures in Tropical Ophthalmology James E. McDonald, MD, Maywood, IL; Thomas J. Stamm, MD, Elmwood Park, IL; Arthur Light, MD, Glencoe, IL

This poster shows ophthalmologists that they can volun­teer their services for short periods at Focus' eye clinics in Nigeria, Haiti, or Colombia. Living quarters and working conditions are illustrated with photographs. The expected case loads (more than ten surgical cases a day in Nigeria) and approximate costs are detailed for each place. To this date, more than 200 short periods of service (usually one month) have been donated by American ophthalmologists.

Poster 84 World Eye Foundation Activities in China F. Hampton Roy, MD, Little Rock, AK; P. C. Wan, MD, Oxnard, CA; Donald R. May, MD, Sacramento, CA

The World Eye Foundation (WE) has been affiliated with 12 medical schools in the People's Republic of China. WE's goal is to assist medical schools in developing countries to be self-sufficient. WE's activities include furnishing books, journals, and audiovisual material. WE is interested in vol­unteers to assist in several countries.

Poster 85 Efficient Office Design in Ophthalmology Hunter R. Stokes, MD, J. Howard Stokes, Jr., MD, D. Parker Stokes, MD, *W. T. Collins, *James P. Barnes, Florence, SC

Traditional office design for physicians, including ophthalmologists, is often inefficient. This poster presents a unique design which has been used for three years, is very functional and efficient, and which can be adapted for use by one ophthalmologist or a group of four to six. Construction design, equipment and furnishings, and traffic flow are dem­onstrated, and actual architectural schematics are shown.

Poster 86 Extended Lower Eyelid Blepharoplasty Robert G. Small, MD, Oklahoma City, OK

The extended lower eyelid blepharoplasty involves the use of a large myocutaneous flap dissected well down over the zygoma. This has been found useful in eliminating large edematous bags over the cheek. It is also useful in lower eyelid blepharoplasty in selected cases of thyroid disease, orbital construction, facial trauma, and certain other recon­structive procedures.

Technical Exhibits

November t - 5, t 98 t Georgia World Congress Center

Visit the technical exhibits between 9 am and 5 pm, Sunday through Thursday. They will be located in Exhibit Halls A and B, on Lower Level I of the Georgia World Congress Center. Following is an alphabetical listing of more than 200 technical exhibitors and their booth assignments. Listings of many of the exhibitors' products featured at the meeting are included on subsequent pages. For more information see the respective exhibit repre­sentatives in their booths.

Exhibitor Booth or Island

Aesculapius Publishing Company Akorn, Inc. Alcon Laboratories, Inc. Allergan Pharmaceuticals, Inc. American Medical Optics/

Heyer-Schulte American Optical Corporation

American V. Mueller AMSCO/ American Sterilizer

Company Appleton-Century-Crofts Publishers Aquaflex® Contact Lens Products/

UCO Optics, Inc. Armorlite/3M Astra Pharmaceutical Products, Inc. A-V Scientific Aids, Inc. Aztec Medical Products, Inc. Barnes-Hind Pharmaceuticals, Inc. Bausch & Lomb Inc. Rudolph Beaver, Inc. Charles D. Bell Incorporated Benson Optical Co.

Bio-Optics, Inc. Brain Power Incorporated (BPI) Breger-Mueller West Corporation Breon Laboratories, Inc. Burroughs Wellcome Co. R. H. Burton Company Canon U.S.A. Inc. Carlson Manufacturing Co., Inc. Ciba Vision Care CILCO, Inc. Circon Corporation Coburn Optical Industries, Inc. Coherent, Inc. The Computation Company Concept, Inc. Contemporary Surgical Systems, Inc. Cooper Vision Copeland Intra Lenses, Inc.!

Copeland Extralens, Inc. Coming Glass Works Cryomedics, Inc. Dakin5 Corp.

1134 343 644, 744, 750 444, 544, 546

560 212, 312, 314, 316, 318 560

1129, 1131 1132

1320, 1321 1324 1309

222 1314, 1315 650 844 837,839

1326 559,561,563, 565, 567, 569 215 121 439 120 612 240 960,962 604

1135, 1137 204 770,772 822 321-340 236

1021, 1023, 1025 217 522, 536

122 869 606,608

1060, 1062, 1064

99

Exhibitor

Da-Laur Incorporated Danker Laboratories, Inc. Data Service Agency, Inc. Davis and Geck Design for Vision, Inc. Dexta Corporation Dicon Digilab, Div. of Bio Rad Labs Lester A. Dine Inc. Dioptics, Ltd. John V. DiStefano, Certified

Booth or Island

368, 370, 372 722,944 464 829,831

1310 804 224,226

1327 764 867

Ocularist and Associates 103 DKS Div. of David Kopf Instruments 1013 DMI International 1055 The Doig Optical Company Dow Coming Ophthalmics

Elden Enterprises, Inc. Elmed Incorporated Ethicon, Inc. Executive Development Center

of Boston, Inc. Fibra-Sonics, Inc. Fiscal Information, Inc. Fisons Corp. Franklin Optical Company Frigitronics of Connecticut, Inc. Good-Lite Company Graczyk, Inc. Grieshaber & Company Grune & Stratton, Inc. Harper & Row Publishers, Inc. Healthfirst Corp. High Stoy Technological Corp. Highlights of Ophthalmology Hines Ophthalmic Laboratories, Inc. Hitron Corporation

Humphrey Instruments Incorporated Hydro-Marc/Frontier Contact Lenses,

1~. 1068, 1070, 1072 1316 816 422

863 114, 116 123 109 437 552, 554, 556 417 809 306, 308, 310

1138 1128

131 1212 1120

111 950, 952, 954, 956 836

Inc. 1059, 1061 Hydrocurve Soft Lenses, Inc. 660 Karl IIg Instrument Co. 910, 912 Instruments for Medicine/Britt

Corporation Intermedics Intraocular Inc.

803, 805, 807 102

100 OPHTHALMOLOGY. SEPTEMBER 1981 • PROGRAM SUPPLEMENT

Exhibitor Booth or Island Exhibitor Booth or Island International Medical Instruments, Pacific Medical Press 1130

Inc. 431,433 Parke-Davis 1048, 1050 International Ophthalmic Paul-Marc Systems, Inc. 113

Industries Corporation 610 PDR for Ophthalmology, Iolab Corporation 860 Medical Economics, Inc. 1106 !sell-Diversatronics, Inc. 413,415 Pharmacia Laboratories 904 S. Jackson, Inc. 357 Phone Ware, Inc. 360, 362, 1034 Jedmed Instrument Company 365, 367, 369, Alfred P. Poll, Inc. 643,645

371 Precision Cosmet 452 Katena Products, Inc. 1322 Proctor & Gamble Surgical Products 1209, 1210 Keeler Optical Products, Inc. 414 Professional Pharmacal Company 435 Kerato-Refractive Society 1110 Radionics Medical Division 865 Key Medical 1053 Raven Press 1056 Khosla & Company 363 Replacement Lens, Inc. 1065 Kilgore International, Inc. 234 Ro-Ta Enterprises, Inc. 1301, 1302 F & F Koenigkramer 868 Rx Honing Machine Corp. 709 Kowa Optimed, Inc. 421,423, 425, Rynco Scientific Corp. 916,918

427,429 Salvatori Ophthalmics, Inc. 1009, 1011 Krishna Eye Instruments 1311 W. B. Saunders Company 1118 Lasertek, Inc. 1207, 1208 Schering Laboratories 550 Lawton Surgical Instruments 460,462 Edward H. Schmidt & Sons 1202, 1203 Lea & Febiger 1140 SCL Laboratories 1329 Lederle Laboratories 221, 223 Seiler Instrument Co.!aus Jena 1069, 1071 E. Leitz, Inc. 351, 353 Sequoia Group, Inc. 1016 Lewanne Industries, Inc. 107 The Site Corporation/Ducat Co. 411 Life-Tech, Inc. 711 Charles B. Slack, Inc. 1114 Lightcom, Inc. 1051 SMR 126 J. B. Lippincott Company 1126 Sonometrics Systems, Inc. 649, 651, 653, Little, Brown, and Company 1102 655 LKC Systems, Inc. 230 Southern Optical Company, Inc. 1204, 1205 Lombart Instrument Co. 403, 405, 407 Sparta Instrument Corp. 1139 Lynell Medical Technology, Inc. 871 Spectra-Med Company 1206 Macmillan Publishing Co., Inc. 1108 Steinway Instrument Co., Inc. 347, 349 Marco Equipment, Inc. 926, 928, 930, Storz Instrument Company 432

932 Stryker Corporation 712 McGhan Medical/3M 132 Surgical Design Corporation 1318, 1319 M. D. Video Systems, Inc. 1213 Surgidev Corporation 350 Medical Dynamics, Inc. 1030, 1032 Surgikos, Inc. 1038, 1040 Medical Equipment Supply Co. 1306 Survey of Ophthalmology, Inc. 1136 Medical Instrument Res. Assoc., Synemed, Incorporated 724, 726, 730,

Inc. 703-708 732, 734, 736, Medical Planning Associates 459 738, 740 Medical Workshop, USA, Inc. 1015, 1017 Syntex Ophthalmics, Inc. 833,835 Medicornea Eastern 1067 Technical Enterprises 1027 Medrad, Inc. 359 Tele-Com Office Products, Inc. 238 Mentor 0 & 0, Inc. 344 Topcon Instrument Corp. of America 404 Merck Sharp & Dohme 616 Tracor Analytic, Inc. 345 Metricon, Ltd. 861 Trans Leasing International 810 Micra, North America, Inc. 341 U.S. Air Force 1133 Moria-Dugast S.A. U.S. Army Medical Department 232 The C. V. Mosby Company 1052, 1054 U.S. Optical Specialties, Inc. 914 Multi-Optics Corp. 1063 Visidyne Corporation 1022 Navy Recruiting Command, Visitec Company 355

Washington, DC 461 Yolk Optical/Tech Optics, Inc. 1307, 1308 Nicolet Biomedical 1044, 1046 Walman Optical Company 1049 Nikon, Inc.-Instrument Division 821, 823, 825 WCO/HOV 465-472 N oir SunglasseslRecreational Edward Weck & Company, Inc. 504

Innovations 1325 Welch Allyn, Inc. 859 Ocular Instruments, Inc. 968, 970, 972 Wesley-Jessen Inc. 1029, 1031 Omni American, Inc. 670 Western Optical Corp. 1004 Ophthalmic Instruments, Inc. 964,966 The White-Haines Optical Company 922,924 Optical Radiation Corp. 766, 768 Williams & Wilkins Co. 1116 Optical Sciences Group 1201 Year Book Medical Publishers, Inc. 1104 Optics International Younger Optics Manufacturing 304 Ostertag-Parsons Co., Inc. 760,762 Carl Zeiss, Inc. 514

• TECHNICAL EXHIBITS 101

Booth 1134 Aesculapius Publishing Company 903 South 21st St., Birmingham, AL 35205 (205) 322-5457

Medical books

Booth 343 Akorn, Inc. 1425 Melody Dr., Metairie, LA 70002 (504) 835-4955

AK TATE 5 & 10 ml; AK Cide 5 & 15 ml; AK CON 15 ml; AK Sulf 15 ml; AK Pred 5 ml; AK Fluor 25% 2 ml; AK Taine 15 ml; AK Dilate 2.5% 15 ml

Islands 644, 744, 750 Alcon Laboratories, Inc. (Alcon/bp, Alcon International, Alcon Optic, Alcon Surgical, and Mager & Gougelman divisions) P.O. Box 1959, Fort Worth, TX 76101 (817) 293-0450

Artificial eyes; BoilnSoak® and Flex-Care® systems; Natacyntfib Tobrex.@; ophthalmic surgical disposables and instrumentation; Tre-Soft® (ocufi1con A) and Tre-Soft® thin soft contact lenses

Booths 444, 544, 546 Allergan Pharmaceuticals, Inc. 2525 Dupont Dr., Irvine, CA 92713 (714) 752-4500

Propinetfib; Poly-Predtfib ; FML®; Allergan Cleaning® and Disinfecting Solution; Hydrocare® products; soft and hard lens products

Island 560 American Medical Optics/Heyer-Schulte 1402 E. Alton Ave., Irvine, CA 92714 (714) 754-2250, 754-2247

Intraocular lenses; Sauflon extended-wear contact lenses; endothelial microscopes

Booths 212, 312, 314, 316, 318 American Optical Corporation 14 Mechanic St., Southbridge, MA 01550 (617) 765-9711

SR-IV programmed subjective refractor; Custom II chair and stand; non-contact Tonometer II; AO Ful-Vue aspheric cataract lens; AO monoplex eyes; Flow Vision aids; Softcon lenses; AO soft lenses

Island 560 American V. Mueller 6600 West Touhy Ave., Chicago, IL 60648 (312) 774-6800

Surgical instruments

Booths 1129, 1131 AMSCO/ American Sterilizer Company 2424 West 23rd St., Erie, PA 16512 (814) 452-3100

Surgical lights; surgical tables; micro-surgical support col­umn; surgical audiovisual system

Booth 1132 Appleton-Century-Crofts Publishers 292 Madison Ave., New York, NY 10017 (212) 532-1700

Medical books

Booth 1324 Armorlite/3M 130 N. Bingham Dr., San Marcos, CA 92069 (714) 744-4000

Hard resin postcataract spectacle lenses; hard coated, scratch resistant CR-39 spectacle lenses; postcataract spec­tacle lens refracting and dispensing materials

Booth 1309 Astra Pharmaceutical Products, Inc. 7 Neponset St., Worcester, MA 01606 (617) 852-6351

Xylocaine® and Duranest® local anesthetics

Booth 222 A-V Scientific Aids, Inc. 12601 Industry St., Garden Grove, CA 92641 (714) 898-9904

Films for patient education; television-like viewers

Booths 1314, 1315 Aztec Medical Products (formerly Newman Ophthalmic 1390 Valley Rd., Stirling, NJ 07980 (201) 647-1600

Kloti vitreous stripper; PCSI-Suction infusion system; Moria surgical instruments; Key medical products; axial length­oculometer

Island 650 Barnes-Hind 895 Kifer Road, Sunnyvale, CA 94086 (408) 736-5462 Eppy-N; Fluress; Ful-Glo; Soft-mate product line; Soft­care product line

Island 844 Bausch & Lomb 1400 N. Goodman St., Rochester, NY 14602 (716) 338-6074

Soflens® (Poly macon) contact lens; accessory products; so­lutions; accessory and solution product literature; insurance literature

Booth 837, 839 Rudolph Beaver, Inc. 411 Waverley Oaks Rd., P.O. Box 589, Waltham, MA 02154 (617) 894-5230

Disposal, ophthalmic surgical blades, handles, and knives; Micro-Sharps®; Micro-Blades®; Mini Blades®; Unitome®

102 OPHTHALMOLOGY • SEPTEMBER 1981 • PROGRAM SUPPLEMENT

Booth 1~26 Charles D. Bell, Inc. 1214 Rt. 130 & 1-295, Westville, NJ 08093 (609) 845-4103

Haag-Streit Javal ophthalmometer; Goldmann contact fun­dus & gonio lenses; Topcon indirect ophthalmoscopes; Re­liance stools; John Weiss surgical instruments; Bell custom products; Welch-Allyn products

Booths 559, 561, 563, 565, 567, 569 Benson Optical Co., Inc. 6600 France Ave. South, Minneapolis, MN 55435 (612) 925-3233

UV 400 lenses; fashion lenses; photoslit lamp; diagnostic instruments; Benson Rx Pole; Haag-Streit Visometer; resi­dent assistance and office planning

Booth 121 Brain Power Inc. (BPI) 4470 S.W. 74th Ave., Miami, FL 33155 (305) 264-4465 or (800) 327-2250

Ultrasonic Scrubber<1ib; BPI digital photometer; BPI edgecoating system

Booth 439 Breger Meuller-Welt Corp. 540 West Randolph St., Chicago, IL 60606 (312) 782-8209

Booth 120 Breon Laboratories, Inc. 90 Park Ave., New York, NY 10016 (212) 972-4096

Marcaine

Bullseye bifocal contact lenses; Felxinyl contact lenses

Booth 612 Burroughs Wellcome Co. 3030 Cornwallis Rd., Research Triangle Park, NC 27709 (919) 541-9090

Viroptic®; Neosporin® ophthalmics; Cortisporin ophthal­mics

Booth 240 R. H. Burton Co. P.O. Box 68, Grove City, OH 43123 (800) 848-0140

Burton SL 1000 slit lamp; Burton SL 2000 photo slit lamp; Burton 1501 series ophthalmic wall stand

Booths 960, 962 Canon USA Inc. 140 Industrial Dr., Elmhurst, IL 60126 (312) 833-3070

Automated refractor Autoref R -1; 600 wide angle zoom fun­dus camera CF-60ZA; 45° non-mydriatic retinal camera CR2-45NMA; fundus perimeter

Booth 604 Carlson Manufacturing Company, Inc. 827 East Fourth St., Royal Oak, MI 48067 (313) 542-7373

Carlson System Unit; instrument examining unit; full power patient chair; doctor chair; clinic desk with optional sink installed

Booths 1135, 1137 Ciba Vision Care 2910 Amwiler Court, Atlanta, GA 30360 (404) 448-1200

Softint<1ib; Cibasoft<1ib; Cibathin<1ib

Island 204 Cilco, Inc. 1616 Thirteenth Ave., Huntington, WV 25701 (800) 624-3418

Optiflex<1ib; Kelman<1ib; Quadraflex<1ib lens; J-Flex<1ib lens; "Soft J"<1ib Loop lens; Ong lens; Simcoe II lens; Anis lens

Booths 770, 772 Circon Corporation 749 Ward Dr., Santa Barbara, CA 93111 (805) 967-0404

Miniature video cameras (602 color video camera) and ac­cessories

Island 822 Coburn Optical Industries, Inc. 1375 S. Fort Harrison, Clearwater, FL 33516 (813) 443-2606

Coburn intraocular lenses; Rodenstock slit lamps; Rodenstock ophthalmometers; Rodenstock photo slit lamps; Rodenstock instrument carriers; Rodenstock retinometer; Rodenstock automatic recording lens meter

Booths 321-340 Coherent, Inc. 3270 W. Bayshore, Palo Alto, CA 94303 (408) 858-2250

Diptron, CO2 laser; argon laser; Ocuplot visual field instru­ment; perimetron

Booth 236 The Computation Co. 5185 Mercury Pt., San Diego, CA 92111 (714) 560-6117

The Automatic Tangent Screen

Booths 1021, 1023, 1025 Concept, Inc. 12707 U.S. 19 South, Clearwater, FL 33516 (813) 536-2791

Guibor canaliculus intubation set; Kaufman Vitrector II kit; Guibor bubble & flat bandages; Thornton nasolacrimal duct; Guibor Ophtho burr; Thorton iris retractor; penlights; cauteries

• TECHNICAL EXHIBITS 103

Islands 522, 536 Cooper Vision 600 McCormick St., San Leandro, CA 94577 (415) 568-6800

Perma-Lens® extended wear contact lens; Miochol®; Meid­cornea intra-ocular lens; Cavitron Phaco-Emulsifier®; Ocutome®/Fragmatome@> vitrectomy system; Cavitron Horizon argon laser; LOG-3 photocoagulator; VISC/STAT vitrectomy systems

Booth 122 Copeland Intra Lenses, Inc. Copeland Extralens, Inc. 129 East 61st St., New York, NY 10021 (212) 838-3525

Copeland intraocular implant lens; Copeland coloreader; Sussman goniolens; Copeland cone; Copeland aspheric lenses for indirect ophthalmoscopy

Booth 869 Corning Glass Works MP 21-2, Corning, NY 14831 (607) 974-7766

Special photochromic filtered lenses

Booths 606, 608 Cryomedics, Inc. 500 Bostwick Ave., Bridgeport, CT 06605 (203) 579-0414

MC-3000; MC-I000; MT-650 and microsurgery scopes

Booths 368, 370, 372 Da-Laur, Inc. 140 Crescent Rd., Needham Heights, MA 02194 (617) 444-3690

Refraction desk; exam table; exam chair; lighting controls; instrument stands; slit lamps; lensometers; refractors

Booths 722, 944 Danker Laboratories, Inc. P.O. Box 1899, Sarasota, FL 33578 (800) 237-9641

Meso® (cab) contact lenses; Multi-Meso@> (cab) contact lenses for presbyopes; silicone lenses; PMMA lenses; Dura-T® Slim lenses; ophthalmic solutions; supplies and ac­cessories

Booth 464 Data Service Agency, Inc. 9 American Industrial Dr., Maryland Heights, MO 63043 (314) 878-6100

Computerized bookkeeping services

Booths 829, 831 Davis and Geck 1 Casper St., Danbury, CT 06810 (203) 743-4451

Dexon® "s" polyglycolic acid sutures-monofIlament and braided; Dexon® "Plus" polyglycolic acid sutures, coated with Poloxamer 188; Surgilon®; Dermalon®; Surgilene®; Ti-Cron®; Dacron®

Booth 1310 Designs for Vision Inc. 120 East 23rd St., New York, NY 10010 (212) 674-0600/(800) 221-3476

Telescopes, telemicroscopes, microscopes for the partially sighted; surgical telescopes; Fiberoptic headlights; Telestil photo adaptor; Lux 10,000 microscope illumination kit

Island 804 Dexta Corporation 962 Kaiser Rd., Napa, CA 94558 (707) 255-2454

Mark 52-S surgical table; Mark 50-S surgical table; Mark 54-E examination chair; operator stools

Booths 224, 226 Dicon 7540 Trade St., San Diego, CA 92121 (714) 578-2981

Electronic Keratometer/Pachometer System; Auto Perime­ter 2000 with 362 targets, 10 standard programs, motorized head restraint, matrix printer and CRT and video display; Auto Perimeter 200

Booth 1327 Digilab 237 Putnam Ave., Cambridge, MA 02139 (617) 868-4330

OCVM System; Model 30D, Model 30R, Model 30RlT pneumatonometers

Booth 764 Lester A. Dine Inc. P.O. Box F, Farmingdale, NY 11735 (516) 454-6100

Kodak Instatech and Instant Eye closeup cameras; Pentax cameras and macro lenses; Dine Eye light equipment and the new TriLight

Booth 867 Dioptics 190 West Yale Loop, Irvine, CA 92714 (714) 559-4748

UV400 spectacle lenses; UV400 microscope filters; Solar­shield goggles; Fenzl reticles

Booth 103 John V. DiStefano, Certified Ocularist, and Associates 3456 Cleary Ave., Suite 405, Metairie, LA 70002 (504) 888-2800

Ocular prosthesis; artificial eyes

Booth 1013 DKS, A Division of David Kopf Instruments 7327 Elmo St., P.O. Box 636, Tujunga, CA 91042 (213) 352-5955

Vitrophage system and accessories

104 OPHTHALMOLOGY. SEPTEMBER 1981 • PROGRAM SUPPLEMENT

Booth 1055 DMI International 2601 S. 2700 West, Salt Lake City, UT 84119 (801) 972-3212

Surgery tables; examination/treatment chairs; accessory items

The Doig Optical Co. 2041 Blvd. of the Allies, Pittsburgh, PA 15219 (412) 471-3020

Haag Streit slit lamps, perimeters, ophthalmometer; Cle­ment Clarke Friedmann Analyser Mark II, Perkins To­nometer; American Optical products; Bausch & Lomb prod­ucts; Luneau slit photographic attachment

Booths 1066, 1068, 1070, 1072 Dow Corning Ophthalmics 4700 Colley Ave., Norfolk, VA 23508 (804) 489-7501

Contact lenses and supplies

Booth 1316 Elden Enterprises, Inc. P.O. Box 3201, Charleston, WV 25332 (304) 344-2335

Abodia slide storage cabinets; custom bases; editing table

Island 816 Elmed Inc. 60 West Fay Ave., Addison, IL 60101 (312) 543-2792

Moeller ophthalmic microscope; Medi-Matic operating ta­bles; Willard ophthalmic instruments; Martin surgical in­struments

Island 422 Ethicon, Inc. Route 22, Somerville, NJ 08876 (201) 524-3346

1110 Prolene@> polypropylene suture; Coated Vicryl@ polyglactin 910 suture; 4 ml and 6 ml compound curve nee­dles; CIF needle swaged to Prolene suture; S-28 needle; SM-l needle; PDS@> polydioxanone suture; GS-17, GS-18, GS-19 needles

Booths 114, 116 Fibra-Sonics, Inc. 5312 N. Elston Ave., Chicago, IL 60630 (312) 286-7377

Ophthalmic instruments from the People's Republic of China; computer interfacing relative to medical devices

Booth 437 Franklin Optical Co. 26200 Industrial Blvd., Hayward, CA 94545 (415) 785-4567

Franklin refraction desk centers; scope holders; fixation de­vices; Franklin products

Booths 552, 554, 556 Frigitronics of Connecticut, Inc. 770 River Rd., Shelton, CT 06484 (203) 929-6321

N20 System; spherical retinal probe; cryoextractors; micro probe; cataract probe; fiberoptic binocular indirect ophthal­moscope with Small-Pupil Feature@>

Booth 417 Good-Lite Co. 1540 Hannah Ave., Forest Park, IL 60130 (312) 366-3860

Perimeter; refracting insta-line; eye charts; head lights; examination lights

Booth 809 Graczyk, Inc. 849 Westwood Ave., Addison, IL 60101 (312) 628-1122

Surgical and capital equipment

Booths 306, 308, 310 Grieshaber and Co. 1056 Trenton Rd., P.O. Box 807, Fallsington, PA 19054 (215) 547-7676

Diamond-coated all-purpose foreign body forceps; mem­brane peeler cutter; Sutherland rotatable microsurgery in­struments; UltraSharp@ disposable knives; Grieshaber hand instruments

Booth 1138 Grune & Stratton, Inc. 111 Fifth Ave., New York, NY 10003 (212) 741-6858

Krohel, Stewart, Chavis: Orbital Disease: A Practical Ap­proach; Machemer: Vitrectomy, 2nd Ed.; Fuller, Hutton: Evaluation of the Eyes with Opaque Media; Audio Journal Review: Ophthalmology, Devron H. Char, M.D., editor

Booth 1128 Harper & Row, Publishers, Inc. East Washington Square, Philadelphia, PA 19105 (215) 574-4256

Loose leaf reference services; medical books and journals

Booth 1212 High Stoy Technological Corp. 2 Nevada Dr., Lake Success, NY 11042 (516) 328-9100

Bronson Turner Ophthalmic B-Scanner; High Stoy eye mag­net; digital A-Scan

Booth 1120 Highlights of Ophthalmology Box 1189, Panama 1, Republic of Panama (813) 977-8276

Two volume silver anniversary edition of Highlights of Ophthalmology, by Dr. Benjamin F. Boyd

• TECHNICAL EXHIBITS 105

Booth 111 Hines Ophthalmic Laboratories, Inc. PO Box 252, Knoxville, TN 37901 (615) 573-0151

Slit lamps; chairs and stands; lensometers; stools, soft contacts; contact lens supplies

Booths 950, 952, 954, 956 Hitron Corp. Westminster Industrial Park, East Providence, RI 02914 (401) 434-9204

Octopus® Fully Automated Perimeter; Octopus® 2000 Fully Automated Perimeter for the doctor's office

Island 836 Humphrey Instruments Inc. 3081 Teagarden St., San Leandro, CA 94577 (415) 895-9110; (800) 227-1508

Astra objective refractor; auto keratometer; vision analyzer; lens analyzer; contact lens analyzer

Island 660 Hydrocurve Soft Lenses, Inc. 8006 Engineer Rd., San Diego, CA 92111 (800) 854-2852

Spherical soft contact lenses; lenses for astigmatism; myopic and aphakic extended-wear lenses; Cabcurve® gas­permeable contact lenses

Booths 1059, 1061 Hydro-Marc/Frontier Contact Lenses Inc. 1409-1417 San Marco Blvd., Jax, FL 32207 (904) 396-2491

The Hydro-Marc® spherical standard and ultrathin lenses; SMT stockable toric soft lens; Marc V thermal disinfection unit; inventory cabinets

Booths 803, 80S, 807 Instruments for Medicine/Britt Corp. 177 S. Patterson #B, Santa Barbara, CA 93111 (805) %4-8705

Britt air-cooled ophthalmic laser line; Smirmaul operating quantitative keratometer; Kremer Corneomete(!l!> ultrasonic pachometer; radial keratotomy instruments including the Bores adjustable holder

Island 102 Intermedics Intraocular Inc. 169 N. Halstead St., Pasadena, CA 91107 (213) 796-0281

Intraocular lenses

Booths 431, 433 International Medical Instruments, Inc. 2502 Silverside Road, Suite I, Wilmington, DE 19803 (302) 478-8550

John Weiss microsurgical instruments; Clement Clarke products

Booth 610 International Ophthalmic Industries Corp. 54 Bay State Rd., Weston, MA 02193 (617) 894-2020

Eye surgery instruments by Hans Geuder GmbH of Heidel­berg, West Germany; standard and IOL instruments; Micro-Keratron® electronically controlled "see-through" trephine system by Geuder; hand applanation tonometer by Moller of Hamburg, West Germany

Island 860 IOLAB Corp. 861 S. Village Oaks Dr., Covina, CA 91724 (213) 915-7681

Injection molded posterior chamber, anterior chamber and pre-pupillary intraocular lenses by Shearing, Sinskey, Seve­rin, Azar; videotapes; scientific papers

Booths 413, 415 Isell Diversatronics 226 W. Penn St., Norristown, PA 19401 (215) 277-5220/1

Ophthalmic examining systems; interoffice communication systems; patient and physician seating; office design and planning and instrument delivery systems

Booth 357 S. Jackson, Inc. 4815 Rugby Ave., Bethesda, MD 20014 (301) 657-8920

Supramid Extra® surgical suture; foil; mesh; eye muscle sleeves; quarter globe caps

Booths 365, 367, 369, 371 Jedmed Instrument Co. 1430 Hanley Industrial Court, St. Louis, MO 63144 (314) 968-0822

Axisonic II ultrasound unit; Hessburg-Barron vacuum trephines; Jedmed AlB ultrasound unit; Jedmed voice actuated control system for Zeiss microscope; Kowa fundus camera; Neitz office microscope; radial K instrumentation; slit lamps

Booths 910, 912 Karl Ilg Instrument Co. 117 N. Charles, Villa Park, IL 60181 (312) 834-4219

Smith-Leiske cross action implant forceps; Smith-Leiske lens positioners # 1 and #2; Gills 25-gauge angled cortex aspirating needles; Schaefer double prong plastic surgery forceps

Booth 1322 Katena Products, Inc. 10 Great Meadow Lane, East Hanover, NJ 07936 (201) 884-1484

Instruments for ophthalmic surgery

106 OPHTHALMOLOGY. SEPTEMBER 1981 • PROGRAM SUPPLEMENT

Island 414 Keeler Instruments, Inc. 456 Parkway, Broomall, PA 19008 (215) 353-4350

Prismatic high powered wide field surgical spectacle loupes; Pocklington wide field specular microscope; SITE system handpiece; motorized scissor system; Keeler/Amoils N20 gas collection cryo units; Fison indirect ophthalmoscope wlPoole attachment; Diversatronics micro processor call system; Pantops M2 electrophysiology unit

Booth 1110 Kerato-Refractive Society P.O. Box 145, Denison, TX 75020 (214) 465-7311

Surgical and medical ophthalmic textbooks

Booth 1053 Key Medical P.O. Box 18244, 4224 Henderson Blvd., Tampa, FL 33679 (813) 251-1000

Medical examination penlights and disposable cauteries; otoscope; ophthalmoscope and miniscope

Booth 363 Khosla and Co. 157, S. Gandhi Marg, Bombay 400 002, Maharastra, India 312423/295245

Forceps; needle holders; corneal scissors; iris scissors; speculum; blade breakers and various microsurgical instru­ments

Booth 234 Kilgore International 36 W. Pearl St. (P.O. Box 98), Coldwater, MI49036 (517) 279-8654

Human bone demonstration skulls; skeletal materials; ana­tomical models; anatomy books

Island 868 F & F Koenigkramer 96 Caldwell Dr., Cincinnati, OH 45216 (513) 761-7444

Reliance® Connoisseur collection; 980 & 7780 chair and stand; Model M-701 hydraulic surgical stretcher; surgical stools for microsurgery

Booths 421, 423, 425, 427, 429, Kowa Optimed, Inc. 20001 S. Vermont Ave., Torrance, CA 90502 (213) 327-1913

Automatic fundus camera; automatic photo slit lamp; color video fundus camera; hand-held ophthalmic instruments (fundus cameras, slit lamps, applanation tonometer) and Neitzs products

Booth 1311 Krishna Eye Instruments P.O. Box 425, Cynthiana, KY 41031 (606) 234-6594

Microsurgery instruments; scissors; blade breakers; needle holders; forceps; retractora; speculums

Booths 1207, 1208 Lasertek, Inc. 1717 Walnut Hill Ln., Irving, TX 75062 (214) 256-4564

Argon-krypton laser coagulator; remote fiber terminal; in­traocular laser probe; ultrasonic diagnostic scanner; low power CO2 laser for ophthalmology

Booths 460, 462 Lawton Surgical Instruments 82 Bradley Rd., Madison, CT 06443 (203) 245-7379

Intraocular lens instruments; scissors; forceps; round­handled Troutman-Barraquer needle holders

Booth 1140 Lea & Febiger 600 S. Washington Square, Philadelphia, PA 19106 (215) 922-1330

Nover, The Ocular Fundus: Methods of Examination and Typical Findings, 4th ed.; Smolin and O'Connor, Ocular Immunology; Chandler and Grant, Glaucoma, 2nd ed.; Gelatt, Textbook of Veterinary Ophthalmology

Booths 221, 223 Lederle Laboratories Middletown Rd., Pearl River, NY 10965 (914) 735-5000 Ext. 2442

Diamox® Sequels® acetazolamide; Achromycin® ophthalmic products; Diamox® tablets, acetazolamide; Neptazane® tablets, methazolamide

Booths 351, 353 E. Leitz, Inc. Link Dr., Rockleigh, NJ 07647 (201) 767-1100

M650 surgical operating microscope featuring free suspen­sion system; endothelial microscope

Booth 107 Lewanne Industries, Inc. 3907 Farmdale Dr., Valparaiso, IN 46383 (219) 462-9831

The Evans Arm Rest and Instrument Platform

Booth 711 Life-Tech, Inc. 10515 Harwin, P.O. Box 36221, Houston, TX 77036 (713) 988-6060

Visual evoked potential systems to include: averaging com­puters; photic stimulators; pattern stimulators; eye move­ment recorders

Booth 1051 Lightcom, Inc. 5990 Unity Dr., Norcross, GA 30071 (404) 447-5926

Medical communications

• TECHNICAL EXHIBITS 107

Booth 1126 J. B. Lippincott Co. East Washington Sq., Philadelphia, PA 19105 (215) 574-4256

Loose leaf reference services; medical books and journals

Booth 1102 Little, Brown and Co. 34 Beacon St., Boston, MA 02106 (617) 227-0730

Pavan-Langston, Manual of Ocular Diagnosis and Therapy; Smith & Nachazel, Ophthalmologic Nursing; Jerger and Jerger, Auditory Disorders; Justice, Ophthalmic Photogra­phy; Robb, Ophthalmology for the Pediatric Practitioner; Quarterly Hardcover Series, International Ophthalmology Clinics

Booth 230 LKC Systems, Inc. 2 Professional Dr., Suite 222, Gaithersburg, MD 20760 (301) 840-1992

Universal computer-controlled physiological analysis sys­tem; visual electrodiagnostic system; Ganzfeld stimulator; bright flash stimulator

Booths 403, 405, 407 Lombart Instrument Co. 5741 Bayside Rd., Virginia Beach, VA 23455 (804) 460-4445

Chairs and stands; retinal cameras; refractors; photo slit lamps; hand instruments; ophthalmometers; eye refrac­tometer; projectors

Booth 871 Lynell Medical Technology, Inc. 104 E. 25th St., New York, NY 10010 (212) 674-5100

The Lynell glass intraocular lens

Booth 1108 Macmillan Publishing Co., Inc. 866 Third Ave., New York, NY 10022 (212) 935-7616

Medical textbooks and references

Booths 926, 928, 930, 932 Marco Equipment, Inc. 1316 San Marco Blvd., Jacksonville, FL 32207 (904) 396-4210

Marco@ slit lamps; perimeters; chair and stands; refractors; lensmeters; keratometers; trial sets and Nidek AR 2000 Ob­jective Automatic Refractor

Island 132 McGhanl3M 3M Center, 225-5N, St. Paul, MN 55144 (612) 733-9558 or (800) 328-1302

Sheets design posterior chamber intraocular lens, style 30; style 70 anterior chamber lens; iris-fixated lenses, styles 25, 40, 50; loop style posterior chamber lenses, styles 80, 81; Lens Glide® IOL implantation aid

Booth 1213 M. D. Video Systems, Inc. P.O. Box 4420 (754 Vella Rd.), Palm Springs, CA 92263 (714) 325-2935

Sony Betamax; VHS format videocassette recording sys­tems; super lightweight color cameras adaptable to micro­scopes; Sony audio cassette recording equipment

Booths 1030, 1032 Medical Dynamics, Inc. Building 7J, 14 Inverness Dr. E., Englewood, CO 80110 (303) 770-2990

Medical Dynamics miniature color medical video camera; video system components; optical camera/microscope couplers

Booth 1306 Medical Equipment Supply Co. P.O. Box 16715, St. Louis, MO 63105 (314) 721-5080

Surgical microscope; slit lamps; lensometers; diagnostic in­struments

Booths 703-708 Medical Instrument Research Associates, Inc. 87 Rumford, Ave., Waltham, MA 02154 (617) 894-2200

Ophthalmic cryo; blue field entoptoscope; retinal implants & exoplants; equator plus camera; argon laser; Schepens Pomerantzeff ophthalmoscope; ophthalmic diathermy

Booth 459 Medical Planning Associates 37 Glenwood Ave., Minneapolis, MN 55403 (612) 339-2080

Ophthalmic office, clinic, and dispensary design service

Booths 1015, 1017 Medical Workshop USA 2190 S.E. 17th St., Ft. Lauderdale, FL 33316 (305) 522-0618

Intraocular lenses; super blades; trephines; keratotomy blades; fluid filters and related cataract surgery instruments

Booth 1067 Medicornea Eastern P.O. Box 588, Lebanon, IN 46052 (317) 482-2671

Tear flow contact lenses; Hydro-Marc soft contact lenses; Honan intraocular pressure reducer

Booth 359 Medrad, Inc. 566 Alpha Dr., Pittsburgh, PA 15238 (412) 782-4600

Real time high resolution ultrasound B-scanner with simul­taneous quantitative A-mode display

108 OPHTHALMOLOGY. SEPTEMBER 1981 • PROGRAM SUPPLEMENT

Island 344 Mentor 0 & 0, Inc. 20 Industrial Park Rd., Hingham, MA 02043 (617) 749-8215

Mentor Wet-Field Coagulator; indirect ophthalmoscope; Honans Balloon; Mentor slit lamps; Merocel Wipes & Spears; CM III Utility Scope

Island 616 Merck Sharp & Dohme West Point, PA 19486 (215) 661-6477

Timoptic® (timolol maleate, MSD); Lacrisert® (HPC ophthalmic insert, MSD)

Booth 861 Metricon, Ltd. 1931-A Old Middlefield Way, Mountain View, CA 94043 (415) 969-4721

Metricon Model 120 Fluorophotometer

Booth 341 Micra, North America, Inc. 424 Division St., So. Charleston, WV 25309 (304) 766-6722

Microsurgical instruments of titanium; diamond knives; knife with adjustable depth blade guard

Moria-Dugast, S.A. 108 BouI. St. Germain, Paris, France 75006

Microsurgical instruments; instruments for intraocular lens implantation

Booths 1052, 1054 C. V. Mosby Co. 11830 Westline Ind. Dr., St. Louis, MO 63141 (314) 872-8370

Medical text and reference books

Booth 1063 Multi-Optics Corp. 1153 D Triton Dr., Foster City, CA 94404 (415) 574-8634

Varilux 2

Booths 1044, 1046 Nicolet Biomedical 5225 Verona Rd., Madison, WI 53711 (608) 271-3333

CA -1 OOOIDC-2000 Pathfinder II

Booths 821, 823, 825 Nikon Inc., Instrument Division 623 Stewart Ave., Garden City, NY 11530 (516) 222-0200

Auto Refractometer NR 1000; Aspheric Lenses; Bio Differ­ential Interference Slit Lamp; Endothelial Camera with 2x Macro Lens; Retinapan 45 with Variable Angle; Subnormal Vision Aids; Zoom Photo Slit, Model II; Vertexometers

Booth 1325 NoIR Sunglasses-Recreational Innovations P.O. Box 149, South Lyon, MI48178 (313) 769-5565

NoIR Sunglasses: 100 Series Fitover Style; 200 Series Wraparound Style; 400 Series Fashion Frame; 500 Large Fitover Style; 73mm Lens Blanks; New 40% Transmission

Booths 968, 970, 972 Ocular Instruments, Inc. 2621-151st PI. N.E-., P.O. Box 598, Redmond, WA 98052 (206) 885-1263

Diagnostic, surgical and laser photocoagulation lenses; ap­planation tonometer; temporary keratoprosthesis; Differen­tial Tonomat; instrument tables

Island 670 Omni American 2306 W. Meadowview, Greensboro, NC (919) 852-0680

Omni American Computer Management System for Physi­cians

Booths 964, 966 Ophthalmic Instruments, Inc. 2862-D Walnut Ave., Tustin, CA 92680 (714) 730-1375

American Optical instruments; Marco instruments; Reliance equipment; Beaver blades; Zeiss slit lamps; Canon camera

Optics International 640 Fourth Ave., Louisville, KY 40202 (502) 584-7503

Doig, Kentucky, Opticraft, Optics, Waldert, and Western items

Booths 760, 762 Ostertag-Parsons 3851 Washington, St. Louis, MO 63108 (314) 533-1760

Refracting desk; trial lens sets; lensometer; indirect ophthalmoscope; retinoscopes; hydraulic chair and stand; Haag-Streit slit lamp; Ultramatic Rx Master Phoropter

Booth 1130 Pacific Medical Press P.O. Box 553, San Anselmo, CA 94960 (415) 921-4868

Laser Treatment of Fundus Disease by Howard Schatz, MD

Booths 1048, 1050 Parke-Davis 201 Tabor Rd., Morris Plains, NJ 07950 (201) 540-4182

Vira-A Ophthalmic; ophthalmic products

• TECHNICAL EXHIBITS 109

Booth 113 Paulmarc Systems Green & Lincoln, Lansdale, PA 19446 (215) 368-9650

Computer software for patient registration, patient accounting/insurance, scheduling, online medical records, contact lens inventory, slide catalog, financial management and word processing

Island 904 Pharmacia Laboratories 800 Centennial Ave., Piscataway, NJ 08854 (201) 457-8000 Healon®

Booths 360, 362, 1034 Phone Ware, Inc. 7534 La Jolla Blvd., La Jolla, CA 92037 (714) 459-4255

lIT business phone systems; Phone Ware® FM wireless voice intercoms; Signacom wireless visual intercoms; Panasonic electronic memory dialers; Phone Mate telephone answering units; Pace cordless phones; Linear security alarm systems; Secope car phones

Booths 643, 645 Alfred P. Poll, Inc. 40 West 55th St., New York, NY 10019 (212) 246-4452

Slit lamps; ophthalmometers; perimeters; phoropters; lens­ometers; ophthalmoscopes; chairs; instrument stands

Island 452 Precision Cos met 600 France Ave. South, Minneapolis, MN 55435 (612) 925-3233

UV 400 lenses; fashion lenses; photo slit lamp; diagnostic instruments; Benson Pole; Haag-Streit Visometer; resident assistance and office planning

Booths 1209, 1210 Procter & Gamble P.O. Box 8427, Memphis, TN 38108 (901) 454-8126

Boundary single-use drapes & gowns; EENT pack; custom head drape

Booth 435 Professional Pharmacal Company P.O. Box 459, Lindenhurst, NY 11757 (516) 842-4209

Ophthalmic pharmaceuticals; Antibiopto; Vernacel; Pre­dulose; Mytrate; Efricel; Cetazol; Sulfapred; Irrigate

Booth 865 Radionics Medical 1240 Ellesmere Rd., Scarborough, Ontario, Canada (416) 292-1575

Model 3000 Echo-Oculometer

Booth 1056 Raven Press 1140 Avenue of the Americas, New York, NY 10036 (212) 575-0335

Books: Oculoplastic Surgery; Neurotoxicity of the Visual System; Perimetry: Principles, Technique, and Interpreta­tion; and Computerized Tomography of the Orbit and Sella Turcica

Booths 1301, 1302 Ro-Ta Enterprises, Inc. 7260 Southeast Blvd., Derby, KS 67037 (316) 788-4531

Ro-Ta System; Ro-Ta Module

Booth 709 Rx Honing Machine Corp. 1301 E. Fifth St., Mishawaka, IN 46544 (219) 259-1606

The Rx Honing Machine

Booths 916, 918 Rynco Scientific Corp. 31 Stewart St., Floral Pk., NY 11002 (516) 488-5500

RX-56 (porofocon A) gas permeable contact lens; Memlite and RX-56 "T.A."

Booths 1009, 1011 Salvatori Ophthalmics, Inc. 3703 N. Washington Blvd., Sarasota, FL 33578 (800) 237-2221

Soft hydrophillic contact lenses; toric contact lenses

Booth 1118 W. B. Saunders Co. West Washington Sq., Philadelphia, PA 19105 (215) 574-4834

Medical books

Booth 550 Schering Laboratories 2000 Galloping Hill Rd., Kenilworth, NJ 07033 (201) 931-2963

Garamycin® ophthalmic ointment and solution; Sodium Sulamyd® ointment and solution; Metimyd® ophthalmic ointment and suspension

Booths 1202, 1203 Edward H. Schmidt & Sons 644 E. Washington, Indianapolis, IN 46204 (317) 635-3422

Ophthalmic instrumentation

Booth 1329 SCL 640 Fourth Ave., Louisville, KY 40201 (502) 583-8853

Contact lenses and supplies

110 OPHTHALMOLOGY • SEPTEMBER 1981 • PROGRAM SUPPLEMENT

Booths 1069, 1071 aus Jena/Seiler Instrument Co. 170 E. Kirkham Ave., St. Louis, MO 63119 (314) 968-2282

Surgery microscope 212; surgery microscope 310; slit lamp 110 w/applanation tonometer & Hruby lens; photo slit lamp 211; stereo ophthalmoscope 110; ophthalmometer; Ret­inophot 211

Island 1016 Sequoia Group, Inc. 1100 Larkspur Landing Circle, Suite 355, Larkspur, CA 94939 (415) 461-7200; (800) 227-2360

Sequoia medical system; medical accounts receivable software; appointment scheduling software; on-line access to Dow Jones; Medlars Literature Retrieval Service; user training

Booth 411 The Site Corp. 456 Parkway, Broomall, PA 19008 (215) 667-9455

Microsurgical instrumentation; motorized cutting tips, scis­sors; irrigation/aspiration pump/power console, variable­speed foot control

Booth 1114 Charles B. Slack, Inc. 6900 Grove Rd., Thorofare, NJ 08086 (609) 848-1000

Journals: Ophthalmic Surgery, Journal of Pediathc Ophthalmology and Strabismus, American Orthoptic Jour­nal; books: Neuro-Ophthalmology Board Review, Manual, Bajandas F; The Retinoscopy Book: A Manual for Begin­ners, Corboy JM

Island 126 SMR 3365 Tree Court Industrial Blvd., St. Louis, MO 63122 (314) 225-3100

System I instrument stand; Maxi Chair; trial lens cabinets; seven-drawer storage cabinets

Booths 649, 651, 653, 655 Sonometrics Systems Inc. 16 W. 61st St., New York, NY 10023 (212) 765-8205

Ocuscan Models 4201SP, 400, 410; digital biometric rulers Models 300, 310, 400/st; Ocugraph 800; digital scan con­verter; and ultrasonic pachymeter

Booths 1204, 1205 Southern Optical Co., Inc. P.O. Box 21328, Greensboro, NC 27420 (800) 334-0816

Retinal cameras; refracting systems; custom cabinetry; slit lamps; chair and stand; ophthalmoscopes; retinascopes

Booth 1206 Spectra-Med Co. 752 N. Woodlawn Dr., Thousand Oaks, CA 91360 (213) 483-3061

Infratome CO2 wet/dry field surgical system; Miller 20-gauge photosurgical microprobes

Booths 347, 349 Steinway Instrument Co., Inc. 5466 Complex St., Suite 205, San Diego, CA 92123 (714) 569-8621

Barraquer Cryo-Lathe and Microkeratome Set Series I; Bar­raquer Cryo-Lathe and Microkeratome Set Series II

Island 432 Storz Instrument Co. 3365 Tree Court Industrial Blvd., St. Louis, MO 63122 (314) 225-5051

Storz Compu-ScanS Biometric Ruler; Storz/Olympus Micro­scope; Lewicky/Storz Chamber Maintainer System<!il>; Storz Bipolar Coagulator phaco emulsification instruments; in­traocular lens instruments; radial keratotomy instruments; ophthalmic disposable/implant products

Booth 712 Stryker Corp. 420 Alcott St., Kalamazoo, MI49001 (616) 381-3811 Ext. 258

Tapered Head SurgiBed; SurgiStool

Booths 1318, 1319 Surgical Design Corp. 24-05 Jackson Ave., Long Island City, NY 11101 (212) 392-5022

HesliniMackool Ocusystem; intraocular microsurgical sys­tems; ultrasonic diagnostic equipment (A-Scan); surgical stand

Island 350 Surgidev Corp. 6043 Hudson Rd. #360, St. Paul" MN 55125 (800) 328-1670; (612) 739-3000

Intraocular lenses: Leiske Style #10 Physioglex<!il> Anterior Chamber Lens; Lindstrom Style #20 Posterior Chamber Lens (PMMA)

Booths 1038, 1040 Surgikos P.O. Box 130, Arlington, TX 76010 (817) 273-5828; (800) 433-5009, ext. 5828

Surgical drapes and gloves; procedural packs; sterilizing so­lution

Booth 1136 Survey of Ophthalmology 80 Boylston St., Suite 825, Boston, MA 02116 (617) 482-2358

Survey of Ophthalmology; Survey of Ophthalmology Special Supplement: Framingham Eye Study; Ophthalmic Reviews II; Ophthalmic Reviews III

• TECHNICAL EXHIBITS 111

Booths 724, 726, 730, 732, 734, 736, 738, 740 Synemed, Inc. 1215 Fourth St., Berkeley, CA 94710 (415) 526-5330

Fieldmaster® visual field plotter; computerized office busi­ness systems; Colormastef'l'ill precision chromatic source; Squid@ Model 300 computerized perimeter

Booths 833, 835 Syntex Ophthalmics, Inc. 10210 N. 25th Ave., Suite 300, Phoenix, AZ 85021 (800) 528-0366

CSt@> (crofilcon A) contact lens and Polycon® (silafocon A) contact lens

Booth 1027 Technical Enterprises 2444 N.E. 1st Blvd., #500, Gainesville, FL 32601 (904) 378-5845

TE-500 instant photo system for slit lamps; 35-mm photo systems

Booth 238 Tele-Com Office Products, Inc. 2100 E. Foothill Blvd., Pasadena, CA 91107 (213) 577-1032

Conference calling equipment; call diverters; wireless inter­coms; dictation; telephone answering units; cordless tele­phones photo copiers; telecommunications and office prod­ucts

Island 404 Topcon Instrument Corporation of America 65 W. Century Rd., Paramus, NJ 07652 (201) 261-9450

OMS-300 microscope; SBP-20 perimeter; TRC-W retinal camera; SL-5D photo slit lamp; LM-P5 digital projection lensmeter; RM-200 refractometer

Booth 345 Tracor Analytic, Inc. 1842 Brummel Dr., Elk Grove Village, IL 60007 (312) 364-9100

The 3000 Clinical Evoked Potential System; STMi2 Audio/ Somatosensory Stimulator

Island 810 Trans Leasing International 3000 Dundee Rd., Northbrook, IL 60062 (800) 323-1180

Lease Kits; brochures; literature

Booth 1133 U.S. Air Force Medical Services HQ USAFRS/RSHP, Randolph AFB, TX 78148 (512) 562-2366

Career opportunities and training available to individuals in the U.S. Air Force Medical Services

Booth 232 U.S. Army Medical Department

1900 Half St. S.W., Washington, DC 20324 (202) 693-5121

Physician placement service; health professions scholarship program; internship/residency/fellowship opportunities

Booth 914 U.S. Optical Specialties, Inc. 604 Mission St., San Francisco, CA 94105 (415) 982-7966

Stools by Brewer; low vision magnifier by Eschenbach; postmydriatic spectacles; postsurgery device

Island 1022 Visidyne Corp. P.O. Box 73149, Houston, TX 77090 (713) 931-8054

Triscan diagnostic ultrasound system; w/digital gray scale and freeze frame; biometric measurement system; stan­dardized A-scan ultrasound unit; color vision test instrument (Chromops); Pantops ocular electrophysiology unit; F-3 photocoagulation laser, argon/krypton; color vision test

Booth 355 Visitec Co. P.O. Box 10643, Bradenton, FL 33507 (813) 758-0688

Disposable cannulas; Visikit-ECCE-l000 kit; nasal lacrimal duct canaliculus cannulas; Pearce corneal trephine set; irrigating/aspirating surgical handle; Pearce irrigating vectis

Booths 1307, 1308 Yolk Optical/Tech Optics, Inc. 7255 Industrial Park Blvd., Mentor, OH 44060 (216) 942-6161

Volk conoid lenses for indirect ophthaloscopy and sub­normal vision; Volk catraconoid lenses for aphakia

Booth 1049 Walman Optical Co. 808 Nicollet, Minneapolis, MN 55440 (612) 340-8400

Topcon; Marco; American Optical; Orcolite; Reliance; Bausch & Lomb; Propper Instrumentation

Booth 465-472 WCO/HOV 925-26th Ave. East., Bradenton, FL 33508 (813) 748-8035

Ophthalmic chairs and stands; slit lamps; fundus cameras; perimeters; custom furniture and refraction desks; Baylor Visual Fields Programmer

Island 504 Edward Weck & Co., Inc. P.O. Box 12600, Research Triangle Park, NC 27709 (919) 596-9341

Troutman ophthalmic microscope; cataract and IOL instru­ments; radial keratotomy instruments; second generation Weck-Cel sponges and MicroKnives; new ophthalmic dig­itate instruments

112 OPHTHALMOLOGY • SEPTEMBER 1981 • PROGRAM SUPPLEMENT

Booth 859 Welch Allyn, Inc. 4341 State Street Rd., Skaneateles Falls, NY 13152 (315) 685-8351

Iluminated diagnostic instruments; ophthalmoscopes; retinoscopes

Booths 1029, 1031 Wesley-Jessen Inc. 37 South Wabash Ave., Chicago, IL 60629 (312) 346-2000

Dura Soft Gold Label Spheres; DuraSoft Toric lenses; Profes­sional Autoclave; contact lens solutions

Island 1004 Western Optical Corp. 1200 Mercer St., Seattle, WA98109 (206) 622-7627

Chairs; stands; slit lamps; lensometers; indirects; laser lenses; ophthalmoscopes; phoropters

Booths 922, 924 White-Haines Optical Co. 82 N. High St., Columbus, OH 43215 (614) 228-6181

Chairs; stands; optical instrumentation and related acces­sories

Booth 1116 Williams & Wilkins Co. 428 E. Preston St., Baltimore, MD 21202 (301) 528-4000

Medical books and journals

Booth 1104 Year Book Medical Publishers, Inc. 35 East Wacker Dr., Chicago, IL 60601 (312) 726-9733

1981 Year Book of Ophthalmology; McMinn's Color Atlas of Head and Neck Anatomy; Bedford's Color Atlas of Ocular Tumors; Morse's Vitreoretinal Disease; and Sachsenweger's new Illustrated Handbook of Ophthalmology; Year Book's classic ophthalmological titles

Booth 304 Younger Optical Manufacturing 3788 S. Broadway, Los Angeles, CA 90007 (213) 232-2345

10/30 Progressive Power Lens; Semaless Invisible Lens; Apollo Lens Glaze Anti-Fog

Island 514 Carl Zeiss, Inc. 444 Fifth Ave., New York, NY 10018 (212) 730-4481

Operation microscopes; slit lamps; fundus cameras; loupes; drapes