150°x 200 m

NEW KERARING SI-6FOR KERATOCONUS TREATMENT

ASCRS, BOSTON 2010

FRANCISCO SANCHEZ LEON MDINSTITUTO NOVAVISION CD. MÉXICOwww.novavision.compacornea@yahoo.comTEL +52555 3438882

NO FINANCIAL INTEREST TO MEDIPHACOS CO.

150°X 200m

150° X 300m

Pourpose

Evaluate the corneal remodeling using the new Keraring SI 6 for the Keratocous Treatment.

©1997 – 2006 IntraLase Corp. All rights reserved. Confidential Mkt Doc 470 Rev. A

Corneoplastic Techniques

Mechanical methods Intracorneal segmentsIncisional procedures

Biochemical methods Cross-linking UV lightConductive Keratoplasty (CK)

Mix methodsExcimer laser ablationInlays (Acufocus)

Optimized prismatic design

Scalene triangular shape SI-6 compared to Isosceles triangle in SI-5.

Improves effect and optimizes total internal reflection, reducing glare and halos

800µ base width instead of 600µ

Wider base provides 25% greater implant volume and compensates for reduction of effect in the larger optical zone

When should Keraring SI-6 implantation be considered?

Mesopic pupil diameter ≥ 5mm BCVA is ≥ 0.6 Moderete Sphere ≤ 5 D Cylinder value is ≤ 5 D Segment thickness should not exceed 60% of the

minimum pachymetry at the 5.5 optical ring zone When PRK is planned as a second procedure. When phakic IOL implantation is planned as a

second procedure

Different Arc Lengths for each Refraction and Topography appearance

New Keraring SI-6IS-6 IntraLase 60 Hz parameters Depth in Cornea 80% at 5.5 mm Incision Axis at steepest meridian Entry Cut Length 1 mm

Inner Diameter 6.0 mm Outer Diameter 6.8 mm

Ring Energy 1.5 Entry Cut Energy 1.3

New Keraring SI-6150°Asymmetric Thickness Implantation

-3.50/-4.00X135°=20/60

-0.50/-1.25 X 30°=20/30

150°X 200m

150° X 300m

+1.50 / -7.50 X 20°= 20/60

Plano/-1.25 X 45°= 20/30

New Keraring SI-6120°symmetric implantation

120°X 250m

Single Inferior Segment for PMD Corneoplasty Achivement

Preop Postop

New SI-6 KeraringEarly Conclusions Keraring SI-6 achieves Corneoplasty purposes. Keraring SI-6 is not intended to replace the IS-5,

but rather intends to offer the surgeon additional tools to customize the corneal remodeling according to each individual patient’s needs