ocular trauma simplified
TRANSCRIPT
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OCULAR TRAUMA
Dr. Narang
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CLASSIFICATION
BURNS & CHEMICAL INJURIES
EXTRAOCULAR FB
OCULAR INJURIESCONCUSSION OR BLUNT TRAUMA
(CLOSED GLOBE INJURY)
PENETRATING / PERFORATING INJURIES(OPEN GLOBE INJURY)
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HEAT BURNS
CAUSESHOT WATER
STEAM
HOT ASH
EXPLODING POWDER
MOLTEN METAL
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S/SLID SWELLING
CHEMOSIS
SYMBLEPHERON
LID CONTRACTURE-
ECTROPION-EPIPHORA
ENTROPION
EXPOSURE KERATITIS
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TREATMENT
COLD COMPRESSES
LOCAL ANTIBIOTIC OINT QID
METHYL CELLULOSE E/D QID
GLASS ROD TO PREVENT SYMBLEPHERON
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CHEMICAL BURNS
ALKALI BURNS
ACID BURNS
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ALKALI BURNS
STRONG AMMONIA- NECROSIS OF CORNEA
LIME BURNS- ISCHEMIA- COAGULATIVE NECROSIS OF-
CONJUNCTIVA
CORNEA
SCLERA
SYMBLEPHERON & OPAQUE CORNEA
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TREATMENTCOPIOUS IRRIGATIONSWEEP FORNICES WITH COTTON BUDWEAK ACID-BORIC ACID,MILK,VIT CLIME BURNS-10%NEUTRAL AMM. TARTARATE, SODIUM EDTAANTIBIOTIC OINTSTEROID OINTGLASS ROD APPLICATION
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ACID BURNS
HCI, H2SO4
CHEMOSIS
CORNEAL DAMAGE
SYMBLEPHERON
LOCALISE DAMAGE BY PPT. PROTEINS- LESS PENETRATING
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TREATMENTWASH WITH WATER
WEAK ALKALI AS 3% NaHCO3
IF EXTENSIVE CORNEAL DESTRUCTION- TREAT BY
KERATOPLASTY
* SUP. LAMELLAR
* PENETRATING
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WARFARE GASES
LACRIMATORY GASES
MUSTARD GAS
ARSENICAL GAS
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LACRIMATORY GAS
ETHYL IODO ACETATE
BROMO BENZYL CYNATE
CHLORO ACETO PHENON
SYMPTOM- IRRITATION,LACRIMATION,
BLEPHEROSPASM
SIGN-CHEMOSIS
Rx-IRRIGATE WITH SALINE OR 2%NaCO3
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MUSTARD GASDICHLORO ETHYL SULPHIDES/S
BLEPHAROSPASMCHEMOSISORANGE SKIN CORNEA
Rx-IRRIGATE WITH NaHCO3EMOLIENT DROPSANTIBIOTIC OINTDARK GLASSES
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EXTRAOCULAR FB
PARTICLES OF COAL,DUST EMERY,STEEL
GRAINS OF CORN
HUSK OF SEEDS
WING OF INSECTS
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CONJUNCTIVAL FB
PALPEBRAL CONJ- SULCUS SUBTARSALIS
FORNICES
BULBAR CONJ
RxREMOVAL WITH COTTON BUD
HYPODERMIC NEEDLE
SNIP CONJ
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CORNEAL F.BIEDSYMPTOM-PAIN, LACRIMATION,PHOTOPHOBIASIGN-MIOSIS, C.ULCER,HYPOPYONDIAGNOSIS-FLUORESCEIN STAINRx-4% XYLOCAINE,REMOVE WITHCOTTON BUD,NEEDLE,F.BODY SPUDPAD & BANDAGEPROPHYLAXIS-FIT GUARDS ON MACHINES , PROTECTIVE GOGGLES.
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BLUNT INJURY
CONCUSSIONS
CONTUSIONS
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CORNEACORNEAL ABRASION
DISTORTION OF CORNEAL REFLEX(PLACIDO’S DISC)
FLUORESCEIN STAIN +ve
RECURRENT TRAUMATIC KERATALGIA
FINGER NAIL SCRATCHES
FLUORESCEIN STAIN +ve
ON AWAKENING,LID RUBBING
Rx-E/D CIPLOX 2HRLY x 1 WK
-DEBRIDEMENT+EYE PADx48 HR
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RUPTURE OF DESCEMET’S MEMBSTROMAL OEDEMA—DEEP OPACITY
Rx-5% NaCI Sol
BLOOD STAINING OF CORNEAHYPHAEMA—INCREASED IOP—ENDOTHELIAL DAMAGE—BLOOD STAINING OF CORNEA
Rx- LOWER IOP
- EVACUATE HYPHAEMA
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SCLERARUPTURE OF GLOBE
SUDDEN & VIOLENT FORCEFALL ON PROTRUDING OBJECT
SUPERONASAL TEAR OF THIN SCLERA (3-4mm POST TO LIMBUS) --Sub/Conj. DISLOCATION OF LENS
Rx-CAREFUL EXAM , GA PREFFERED
RETRACT LIDS,CUT CONJUNCTIVA,SEE FOR SCLERAL TEAR
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SUTURE SCLERAL TEAR
IF Sub/Conj. DISLOCATION OF LENS-
REMOVE VITREOUS BY VITRECTOMY
SUTURE SCLERA AFTER CLEARING VITREOUS FROM WOUND
EXAMINE RETINA
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IRIS & CILIARY BODY
TRAUMATIC MIOSIS
TRAUMATIC MYDRIASIS
• ANTEFLEXION OF IRIS
• RETROFLEXION OF IRIS
• T. ANIRIDIA
• IRIDODIALYSIS
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• C.BODY– TORN NEAR IT’S ANT. ATTACHMENT– LONGITUDIONAL TEAR IN C. BODY– SPLIT CIRCULAR FROM RADIAL FIBRES
—ANGLE RECESSION—DEEP AC—INCREASED IOP
• Rx-REST– IRIDODIALYSIS-USE ATROPINE– ANCHOR IRIS EDGE WITH SILK SUTURE
TO SCLERAL INCISION.
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LENS• VOSSIOUS RING
• CONCUSSION CATARACT– TEAR IN CAPSULE-
AQUEOUS INFLOW– ROSETTE CATARACT
—TOTAL CATARACT IN HRS TO FEW MONTHS.
– Rx-ECCE+ PCIOL
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• SUBLUXATION OF LENS– DEEP AC,IRIDODONESIS,EDGE OF LENS
VISIBLE
• DISLOCATION– ANT-IN AC(GLOBULE OF OIL)
-MIOSIS-SPASM OF SPHINCTER-IRIDOCYCLITIS,SEC. GLAUCOMA
– POST.- IN VITREOUS CAVITY-BLACK PUPIL-HIGH HYPERMETROPIA
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• Rx-– AC-WIRE VECTIS EXTRACTION WITH
VITRECTOMY– VITREOUS-VITRECTOMY & LENS
REMOVAL BY FRAGMATOME-USE OF PFCL TO BRING LENS INTO AC
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VITREOUS
• VITREOUS DETACHMENT– ANT.– POST.
• VIT. HAEM.– Rx- VITRECTOMY
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CHOROID
• RUPTURE OF CHOROID– CHOROIDAL TEAR WITH VISIBLE
WHITE SCLERA– IF MACULAR INV.-SEVERE VISUAL
LOSS
• CHOROIDAL HAEM.
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RETINA
• COMMOTIO RETINAE(BERLIN’S OEDEMA)– RETINAL OEDEMA—MACULAR
CYST—M. HOLE.CHERRY RED SPOT AT MACULA.
• RETINAL TEARS / DIALYSIS—RD
• TRAUMATIC PROLIFERATIVE CHORIORETINOPATHY
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OPTIC NERVE
• OPTIC ATROPHY– HAEM IN SHEATHS OF OPTIC NERVE– SHEARING FORCE OR STRETCH– NERVE CAUGHT IN FRACTURED
BONE ENDS– SNAPPING OF VESSELS
• AVULSION OF OPTIC NERVE
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I O P
• HYPOTONY
• RAISED IOP
– DUE TO ANGLE RECESSION
– DUE TO GHOST CELL OBS OF TRABECULAR MESHWORK
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PENETERATING INJURIES
• IMM. TRAUMA EFFECTS
• INTRODUCTION OF INFECTION
• POST-TRAUMATIC IRIDOCYLITIS
• SYMPATHETIC OPHTHALMITIS
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INTRODUCTION OF INFECTION
• PYOGENIC ORGANISM-– CORNEAL WOUND—ENTRY—RAPID
NECROSIS OF CORNEA—RING ABSCESS
– PSEUDOMONAS(ANAEROBIC GRAM –VE ROD)—CHEMOSIS OF CONJUNCTIVA(GREEN DISCHARGE)—RELEASE ENZYME—LIQUIFY CORNEA—HYPOPYON—ENDOPTH—PANOPTH
– Rx-INTENSIVE WITH POLYMIXIN B & GENTA
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• CLOSTRIDIA WELCHI– VIRULENT PANOPHTHALMITIS– BROWNISH DISCHARGE– GAS BUBBLE IN AC– Rx— PENICILLIN I/V
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• CLOSTRIDIUM TETANI– CEPHALIC TETANUS– ROAD ACCIDENTS– AGRICULTURAL ACCIDENTS– Rx
* IF IMMUNISED-Inj TT
* IF NOT IMMUNISED-PROPHYLACTIC TREATMENT
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IMMEDIATE TRAUMA EFFECTS
• CONJUNCTIVA– TEAR IN CONJUNCTIVA– Rx-STITCH
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• CORNEA– CORNEAL TEAR-LINEAR
-LACERATED– SMALL & CENTRAL-MAY HEAL– INFECTED-Rx AS C. ULCER– LARGE TEAR-IRIS PROLAPSE
• Rx-ABSCISSON / REPOSITION OF IRIS+REPAIR C.TEAR
• CORNEOSCLERAL TEAR– Rx-REPAIR AFTER VITRECTOMY
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• WOUNDS OF LENS(TRAUMATIC CATARACT)– ROSETTE SHAPED CATARACT
-F. BODY TRACK
-FLOCCULI IN AC
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PENETERATING INJURIES WITH RETAINED IOFB
• IOFB – MECHANICAL EFFECTS– INTRODUCTION OF INFECTION– CHEMICAL ACTION OF FB
• MINUTE CHIPS OF IRON,STEEL & STONE
• GLASS PARTICLES• LEAD PELLETS• COPPER PERCUSSION CAPS• WOOD SPICULES
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MECHANICAL EFFECTS
• CORNEAL/ SCLERAL TEAR• IRIS HOLE• CATARACT• VIT. HAEM.• RD
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INFECTION
• FOLLOWS INTRODUCTION OF STONE OR WOOD PIECES
• FLYING METALS- STERILE AS GENERATE HEAT
• Rx- REMOVAL OF FB
- ANTIBIOTICS
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REACTION OF OCULAR TISSUE TO FB
DEPENDS ON CHEMICAL NATURE OF THE FB
– NON ORGANISED MATERIAL
– ORGANISED MATERIAL
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NON-ORGANISED MATERIAL
• INERT-GLASS,PLASTIC,PORCELAIN,GOLD,Ag,Pt & TENTALLUM
• LOCAL IRRITATION—FIBROSIS• SUPPURATION-Zn,NICKEL,Hg• LOCAL REACTION-Al• MINIMAL REACTION-Pb PELLETS• DEGENERATIVE CHANGES-Fe,Cu
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IRON(SIDEROSIS)
• Fe++ JOINS CELLULAR PROTEINS—KILLS CELLS—ATROPHY– LENS-DEPOSITS ON ANT CAP.
-CATARACT– IRIS-STAINED GREENISH—RED
BROWN– RETINA-PIGMENTARY DYSTROPHY
-DROP IN VA—BLIND– INCREASED IOP
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COPPER/BRASS(CHALCOSIS)
• PURE Cu-SUPPURATION w/a ALLOY-MILD Rxn—CHALCOSIS
• Cu++ ELECTROLYTIC DISSO.—DEPOSITED ON MEMB.– CORNEA-GOLDEN BROWN KF RING– LENS-SUNFLOWER CATARACT– RETINA – GOLDEN PLAQUES AT
POST. POLE, NO DEG. CHANGES,GOOD VA
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ORGANISED MATERIALS
• WOOD & VEG MATTER—PROLIFERATIVE Rxn—GIANT CELL
• EYE LASHES—AC, PROL. OF ROOT HAIR—I/O CYSTS
• CATERPILLAR HAIR—SEVERE IRIDOCYCLITIS—GRANULOMATOUS NODULES
(OPHTHALMIA NODOSA)
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DIAGNOSIS OF IOFB
• DETAILED ANT. SEG.& FUNDUS EXAM
• X-RAY
• USG
• CT
• BURMAN LOCATOR & DETECTOR
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MANAGEMENT OF IOFB
• REMOVAL UNLESS– INERT & STERILE– LITTLE DAMAGE TO VISION– REMOVAL PROCESS IS
DETRIMENTAL TO GOOD VA
• ANT. SEGMENT-REMOVE THRU ANT.ROUTE
• IN LENS- REMOVE LENS
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• POST. SEGMENT– 3 PORT PARS PLANA VITRECTOMY
WITH IOFB FORCEPS, DIAMOND TIP FB FORCEPS, IO MAGNET
– PROGNOSIS- NOT GOOD
• POST TRAUMATIC IRIDOCYCLITIS– Rx-STEROIDS- LOCAL/ SYSTEMIC
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SYMPATHETIC OPHTHALMITIS
• INFLAMMATION OF SOUND EYE AFTER INCARCERATION OF IRIS, CB,LENS CAPSULE
• CILIARY ZONE IS DANGEROUS
• IF SUPPURATION NO S.O.
• IP-4-8WKS(9DAYS TO 40 YRS)
• CF-EXCITING EYE
-SYMPATHETIC EYE
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ETIOLOGY
• INFECTIVE: VIRAL INFECTION
• HYPERSENSTIVITY TO UVEAL PIGMENT- Ag-Ab Rxn
• VIRAL INFECTION MODIFY UVEAL PIGMENT TO BECOME ANTIGENIC
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SYMPATHISING EYE
• PLASTIC IRIDOCYCLITIS• NEURO RETINITIS• CHOROIDITIS• PRODROMAL S/S
– SENSITIVITY TO LIGHT– INDISTINCT NEAR OBJECTS– LACRIMATION,TENDERNESS– CILIARY CONGESTION,KP– VITREOUS OPACITIES– ODEMA OF OPTIC DISC
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• FULLY DEVELOPED S.O.– ALL S/S OF PLASTIC OR SEROUS
IRIDOCYCLITIS– COURSE : MAY RUN FOR 2-3 YRS
• M/E– -EARLY STAGE-NODULAR
AGGREGATION OF LYMPHOCYTES & PLASMA CELLS IN UVEA
– DALEN FUCH’S NODULES-PIG.EPI. OF IRIS & CB PROL.—NODULAR AGG. +LYMPHOCYTES & EPI. CELLS. LATER ON GIANT CELLS(NO CASEATION) D/D –TB
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EXCITING EYE
• IRIDOCYCLITIS(PLASTIC)– LACRIMATION– CILIARY TENDERNESS– CILIARY INJECTION– KP
• QUIESCENT STAGE—SHRUNKEN GLOBE
• ON S.O.IN SOUND EYE RETURN OF ABOVE S/S IN EXCITING EYE
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TREATMENT• PROPHYLACTIC TREATMENT
– ENUCLEATION OF INJURED EYE IF NO REGAIN OF USEFUL VISION LIKELY
• EXPECTANT TREATMENT– M/E SURGERY.ENTANGLEMENT OF
IRIS,CB,LENS CAP RELEIVED & REPAIR DONE
– Rx OF AC. IRIDOCYCLITIS-STEROIDS & MYDRIATICS
– IF EYE STILL IRRITABLE-ENUCLEATION(WITHIN 9 DAYS)
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• Rx OF SO– IF JUST DEV.& EXCITING EYE HAS NO
USEFUL VISION—IMMEDIATE ENUCLEATION OF EXCITING EYE
– Rx OF SYMPATHISING EYE AS OF IRIDOCYCLITIS
-ORAL STEROIDS-2mg /Kg WtPREDNISOLONE
-S/TENON DEPOT STEROIDS
-TOPICAL STEROIDS x MANY MONTHS