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Comparison of Trans-PRK and blunt alcohol-assisted PRK

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Session Details

Session Title: Advanced Surface Photoablation

Session Date/Time: Tuesday 10/10/2017 | 09:00-10:20

Paper Time: 09:36

Venue: Room 4.1

First Author: : J.Villada THE NETHERLANDS

Co Author(s): :    J. Martinez de Aragon   C. Rhodius   B. Van Rooijen   M. Amarnis           

Abstract Details


To compare the refractive results of transPRK (Group A) with a recently described alcohol assisted blunt PRK technique (Group B)


Vision Ooglaseren


Retrospective review of cases operated with one of both techniques since started performing transPRK and with at least 3 months follow-up.. Analysis of refractive results and discomfort after the treatment


Group A had 29 eyes (16 patients)and group B 31 eyes (17 patients). Group A had a safety index (SI) of 1,01, and efficacy index (EI) of 0,93; 90% of eyes within 0,5 diopters of planned refraction and 10,3% of eyes losing 1 line of best corrected distance vision (BCDV). Group B had a SI of 1, and EI of 0,9; 90% of eyes within 0,5 diopters of planned refraction and 16,1% of eyes losing 1 line of BCDV. Discomfort was greater in the first two postop days after transPRK but resolved quicker than in blunt PRK.


Both techniques were equally effective. Alcohol assisted blunt PRK had a greater number of patients losing 1 line of BCDV. Unexpectedly transPRK produces initially more discomfort that an alcohol assisted technique.

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