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UV-X corneal cross-linking combined with 340-degree intrastromal ring segment implantatıon for central cone keratoconic eyes

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Session Details

Session Title: Cross-Linking

Session Date/Time: Sunday 06/09/2015 | 08:00-09:30

Paper Time: 08:39

Venue: Main Auditorium

First Author: : E.Coskunseven TURKEY

Co Author(s): :                        

Abstract Details

Purpose:

To determine the efficacy of 340-Degree Intrastromal Ring Segment (ICR) implantation followed by corneal collagen crosslinking (CXL) to improve vision and stop progression in central cone keratoconic eyes.

Setting:

Dunya Eye Hospital, Istanbul, Turkey

Methods:

In this prospective case series, 7 (11 eyes) contact lens-intolerant patients (≥18 years) with advanced central or paracentral zone keratoconus (Grade I, II and III) underwent 340-Degree Intrastromal Ring Segment (ICR) (Mediphacos Ltda) implantation followed by corneal collagen crosslinking (CXL). The Mean interval between ICR and CXL was 4,2 months. All patients underwent refractive assessment and corneal topography preoperatively and postoperatively, including measurement of uncorrected visual acuity (UCVA), best-corrected visual acuity (BCVA), mean keratometry (Kmean), spherical equivalent (SE) and cylindrical refraction.

Results:

There were improvements postoperatively vs. preoperatively in mean UCVA (0.5±0.3 vs 0.05±0.01 ), mean BCVA (0.6±0.17 vs. 0.24±0.2 ) mean cylindrical refraction (-2.32±0.4 vs. -4.38±0.8 D), and mean SE (-3.42±0.47 vs -9.26±1.2 D). There was also a reduction in Kmean (46,7 postoperatively vs 53.7 preoperatively). There was no significant change in corneal pachymetry, IOP or endothelial cell count after either of the procedures.

Conclusions:

Implantation of the 340-degree ICRs is an effective and a safe method for the improvement of UCVA and BCVA in central or parcentral cone keratoconic eyes Corneal cross-linking with Riboflavin and UV light seems to be a safe procedure that has shown to stop the progression of the keratoconus. The addition of Keraring to the UV-X procedure resulted in greater keratoconus improvements than UV-X procedure alone.

Financial Interest:

NONE

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