DR. BASITALI LAKHANI

DR.SHIVANANDA NARAYANA, DR.NIRUBAN.G, DR. KUNAL MANDLIK

Abstract

Aim:To study the epithelial remodelling after photorefractive keratectomy (PRK) using Anterior segment Optical Coherence Tomography(AS-OCT).Methods:This prospective observational study was performed from October 2018 to March2020.85 eyes with simple myopia in age group of 21-38 years and spherical equivalent range of -2.25 to -6,underwent PRK with Mytomicin-C (MMC).Epithelial and corneal thickness maps were acquired by AS-OCT preoperatively and postoperatively at 1week, 1month, 3months and 6months.Results:The visual acuity of all patients was 0LogMAR until 6months.We observed epithelial thickening of the cornea at 1 week followed by a decrease at 1 month and a slight increase at 3 months and 6 months.The mean corneal thickness increased from the baseline values in the central 2mm, 2 to5mm and 5 to7mm zones at 6 months respectively (p<0.001).Conclusion:The corneal epithelial thickness increased up to 6 months after PRK-MMC and did not have any significant effect on the visual acuity.