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Efficacy of two silicone-hydrogel bandage contact lenses on epithelial healing after photorefractive keratectomy with anterior segment optical coherence tomography

Poster Details

First Author: M.Eliacik TURKEY

Co Author(s):    S. Karaman Erdur   G. Gulkilik   M. Ozsutcu   Y. Karabela     

Abstract Details

Purpose:

To evaluate the efficacy of two silicone hydrogel bandage lenses (SiHy) on epithelial healing and ocular discomfort following photorefractive keratectomy (PRK) for low to moderate myopia with anterior segment optical coherence tomography (AS-OCT).

Setting:

Istanbul Medipol University, Istanbul, Turkey

Methods:

42 eyes of 21 patients who underwent PRK were included in a contralateral eye comparison study. At the end of the procedure, one eye of each patient, was fitted with a Lotrafilcon B contact lens whereas the fellow eye was fitted with a Comfilcon A contact lens. Patients were examined on the day of surgery and 1, 3, and 5 days postoperatively. Main outcome measures were reepithelialization period, epithelial defect size, patient discomfort score and uncorrected distance visual acuity (UDVA).

Results:

The mean reepithelialization was 3.07±0.64 days in the Comfilcon A fitted group, 3.55±0.54 days in the Lotrafilcon B fitted group and the difference was statistically significant. Average epithelial defect size for Comfilcon A and Iotrafilcon B was 32.67±12.14 mm2 vs. 33.28±11.95 mm2 at day 1 (p = 0.279) and 13.03±5.91 mm2 vs. 14.46±8.68 mm2 at day 3 (p=0.018) postoperatively. Mean subjective discomfort score was 2.25±0.96 in eyes with Lotrafilcon B and 1.64±0.67 in eyes with Comfilcon A on the first exam the day after surgery. The differences were statistically significant.

Conclusions:

Eyes with Comfilcon A showed a statistically significant shorter epithelial healing time and a statistically significant lower discomfort score until the postoperative third day. AS-OCT is a valuable device for epithelialization follow up under contact lenses after PRK.

Financial Disclosure:

NONE

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