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Session Title: Surface Ablation II
Session Date/Time: Tuesday 08/10/2013 | 16:30-18:00
Paper Time: 17:27
Venue: Main Lecture Hall (Ground Floor)
First Author: : W.Ghobashy EGYPT
Co Author(s): : M. Helmy A. AbdelGhany
To compare both Trans PRK and LASIK in correction of mild and moderate myopia regarding effectiveness, visual recovery and safety.
Al Gawhara Eye Center - Ismailia - Egypt
A prospective case control series, with group I of 30 myopic eyes (16 patients) with spherical equivalent (SE) -1.00 to 6.00 were subjected to transepithelial photorefractive keratectomy (Trans PRK) using Schwind Amaris 500E excimer laser, with Trans PRK plate form. A Case-adjusted group II (control group) included 30 myopic eyes (18 patients) with spherical equivalent (SE) -1.00 to 6.00 underwent LASIK using Schwind Amaris 500E excimer laser, with LASIK plate form. Uncorrected visual acuity (UCVA) was measured in the 1st day, 1st week, 1 month and at 6 months along with manifest refraction. Postoperative pain was assessed using visual analogue scale. Occurrence of complications was documented.
Patients in group I showed slower visual recovery with mean of UCVA 0.3 in the 1st postoperative day compared to group II (0.9), However both groups reached mean UCVA of 0.9 by the end of 6th month. Manifest refraction was comparable in both groups with mean of -0.50 D in group I and -0.25 D in group II by the end of the study. Pain was significant in group I with a score of 4 in the first day declining to zero by the end of the first week in comparison to group II with a mean pain score of 1 in the first day and zero by the end of the 1st week. No complications were recorded in either of the two groups along the study time.
Transepithelial photorefractive keratectomy (Trans PRK) may offer a safe and effective alternate to LASIK in treatment of mild and moderate myopia especially in cases of thin cornea.
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