Outcome of Keratorefractive Surgery Among Myopes at Eye Foundation Hospital Group, Nigeria

Abstract

Abstract OBJECTIVES To determine the outcome of keratorefractive surgical procedures among myopes at Eye Foundation Hospital Group, Nigeria. MATERIALS & METHODS The study was a non-randomized prospective study with secondary intervention, conducted among consecutive consenting new patients diagnosed with myopia between − 1.0D to -10D at Eye foundation hospital group. Interviewer administered semi-structured questionnaires, in-depth interviews and focused group discussions were used to collect information on socio-demographic characteristics and post operative feed backs. Participants who had the surgery were closely observed to determine the safety, efficacy, predictability, and stability of the procedure. RESULTS Three hundred and two participants were enrolled into the study with mean age of 30.48 ± 8.44 years and an age range of 18 years to 57 years.Ten eyes of six participants underwent keratorefractive surgery constituting an uptake of 2.0%. The mean age of the participants who underwent keratorefractive surgeries was 28 ± 10.9 years and the range was 18 to 44 years. The mean spherical equivalent for those that had surgery were − 4.3 ± 2.7 D. Eighty percent and 100% of eyes were within ± 0.5 and 1.0 D of the intended correction, respectively and regarding efficacy at 3 months post-operation, the proportion of participants with post-operative uncorrected distance visual acuity of ≥ 6/9 and ≥ 6/6 were 100% and 70% respectively. Regarding safety at 3 months post-operation, 3 eyes (30%) showed no change in corrected distance visual acuity (CDVA), 6 eyes (60%) gained 1 line and 1 eye (10%) lost 1 line. No vision threatening complications were observed in any of the cases. CONCLUSION Good surgical outcome was observed amongst those that were treated and future studies on keratorefractive surgery with larger sample sizes to determine the long-term effects among Nigerians are advocated.