Photorefractive keratectomy for extreme myopia

Session Details

Session Title: Surface Ablations for Correction of Ammetropias

Session Date/Time: Tuesday 16/09/2014 | 08:00-10:30

Paper Time: 08:30

Venue: Auditorium

First Author: : J.Frucht-Pery ISRAEL

Co Author(s): :    Z. Caspi   D. Landau   E. Strassman   D. Wajnsztajn     

Abstract Details

Purpose:

To report the outcomes of photorefractive surgery (PRK) for extreme myopia in Hadassah Medical Center.

Setting:

Hadassah Medical Center – Hebrew University Hospital, Ophthalmology Department, Jerusalem, Israel

Methods:

We retrospectively reviewed all files of all the patients, who, between January 2009 to December 2012, underwent PRK for high myopia: over -10.00 diopters (D), with a follow-up of 6 months or more (mean 14.70 ±10.05 months). Technolass 217 Z laser was used for PRK. Mitomycin C 0.02% was used intra-operatively for 20 seconds. Principal outcomes were uncorrected and best corrected visual acuity (UCVA and BCVA respectively), refractive spherical equivalent (SEQ) and cylinder.

Results:

One hundred twenty eight eyes of 82 patients (35 males and 47 females) with mean age 27.22±8.92 years were studied. The pre-operative SEQ ranged from -10.00 D to -15.20 D, mean SEQ was -11.26±1.15 D and mean cylinder was -1.27±0.89 D. The post-operative UCVA of 6/6 was achieved in 67% of eyes and of 6/12 in 84.6%. Ninety four percent of all eyes achieved SEQ within ±1.00 D. The safety index was 1.05±0.26. Loss of 2 lines of BCVA occurred in 0.7%. We found moderate haze in 2 cases with visual axis involvement. There were no events of infections or stromal melt.

Conclusions:

PRK for extreme myopia is a safe and efficacious procedure with low rate of complications.

Financial Interest:

NONE