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150°X 200 m

150°X 200 m. 150° X 300 m. New Keraring SI -6 for Keratoconus treatment A SCRS , BOSTON 2010 Francisco SAnchez Leon MD Instituto Novavision Cd. México www.novavision.com pacornea@yahoo.com Tel +52555 3438882 No financial interest to mediphacos Co. Pourpose.

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150°X 200 m

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  1. 150°X 200m 150° X 300m New KeraringSI-6for Keratoconus treatmentASCRS,BOSTON 2010Francisco SAnchez Leon MDInstituto Novavision Cd. Méxicowww.novavision.compacornea@yahoo.comTel +52555 3438882No financial interest to mediphacos Co.

  2. Pourpose • EvaluatethecornealremodelingusingthenewKeraring SI 6 fortheKeratocousTreatment.

  3. Corneoplastic Techniques • Mechanical methods • Intracorneal segments • Incisional procedures • Biochemical methods • Cross-linking UV light • Conductive Keratoplasty (CK) • Mix methods • Excimer laser ablation • Inlays (Acufocus)

  4. 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

  5. 800µ base width instead of 600µ • Wider base provides 25% greater implant volume and compensates for reduction of effect in the larger optical zone

  6. 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

  7. Different Arc Lengths for each Refraction and Topography appearance

  8. 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

  9. 150°X 200m 150° X 300m New Keraring SI-6150°Asymmetric Thickness Implantation -3.50/-4.00X135°=20/60 -0.50/-1.25 X 30°=20/30

  10. 120°X 250m New Keraring SI-6120°symmetric implantation +1.50 / -7.50 X 20°= 20/60 Plano/-1.25 X 45°= 20/30

  11. Single Inferior Segment for PMDCorneoplastyAchivement Preop Postop

  12. 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

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