Copenhagen 2016 Registration Programme Exhibitor Information Virtual Exhibition Satellite Meetings Glaucoma Day 2016 Hotel Star Alliance

10 - 14 Sept. 2016, Bella Center, Copenhagen, Denmark

This Meeting has been awarded 27 CME credits


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2 step t-PRK for treatment of mild to moderate myopia

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Session Details

Session Title: Presented Poster Session: Laser Refractive Surgery (Lasers/LASIK/Epi-LASIK)

Session Date/Time: Sunday 11/09/2016 | 09:30-11:00

Paper Time: 10:10

Venue: Poster Village: Pod 2

First Author: : K.Koodlu INDIA

Co Author(s): :    S. T   S. Shetty   H. Vokudu   S. Ganekal     

Abstract Details


To describe safety and results of 2 step-transepithelial Photo-Refractive Keratectomy(t-PRK) using flying spot 250Hz excimer LASER for myopia


Prasad Netralaya Private superspecialty tertiary eye hospital


Study included 35pts (pilot study) and 845eyes in prospective noncomparitive series,where myopic correction was performed using flying spot excimer(250Hz) LASER using 2 step method of t-PRK.Initial pilot study was performed in 35pts of mild(n=20)(upto -3D) to moderate(n=15)(3 to6.5 D)myopia where 1eye treated with 2step t-PRK was compared with fellow eye treated with conventional LASEK.A separate group of 845eyes were treated with 2step t-PRK with maximum myopia6.5D.In the first step of 2step t-PRK,epithelium was removed using the PTKmode(diameter 8mm,ablation depth 56 micron).In second step stromal correction was performed with maximum optical zone of6mm.Mitomycin C0.02% was applied for moderate myopia for 12sec.


In pilot group, by day 3, 70% of the eyes treated with t-PRK showed epithelial healing whereas most LASEK eyes showed epithelial healing by day 5.No patient developed significant corneal haze in mild myopia.1 eye showed mild haze in LASEK treated eye in moderate myopia group.Post operative pain was significantly less in 85%t-PRK eyes than LASEK eye.None of the eyes lost more than 1line of vision compared to preoperative best corrected vision.The refraction was stable between 3 and 6 months.At 3 months all patients had within 1 D of spherical equivalent refraction.


Two step t-PRK may be a safe and effective procedure for refractive correction of mild to moderate myopia

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