Ten-year prevalence of rhegmatogenous retinal detachment in myopic eyes after posterior chamber phakic implantable collamer lens

Purpose: To determine and compare the prevalence of rhegmatogenous retinal detachment (RRD) in myopic eyes operated of posterior chamber phakic implantable collamer lens (ICL) with a control group of nonoperated myopic eyes over 10 years of follow-up. Setting: Clinica Baviera, Madrid, Spain. Design: Retrospective cohort study. Methods: There were 2 study cohorts: one with patients operated with ICL and a control group of nonoperated patients. The primary outcome of RRD was measured retrospectively, first through chart review of ICL-operated patients with at least 10 years of follow-up, then secondarily through telephone questionnaires and specialist verification for those with incomplete follow-up. Prevalence and incidence were calculated and compared, as well as their possible association with other risk factors. Results: 58 operated patients completed follow-up in our clinic. A survey of 3849 more patients was conducted for a total of 252 operated with a mean spherical equivalent (SEQ) of similar to 12.6 diopters (D) and 221 nonoperated with a mean SEQ of similar to 10.5 D. 7 eyes developed an RRD in the operated vs 5 eyes among the nonoperated (prevalence 1.71% vs 1.25%, respectively, P=.773). The equivalence tests, the two one-sided test and the null hypothesis test between groups, were within the 0.02 limits, confirming the null hypothesis, and compared survival curves did not show significant differences (P=.59). Conclusions: ICL implantation surgery for high myopia did not affect the prevalence of RRD in operated eyes compared with similar nonoperated eyes, in this long-term study. Copyright (c) 2022 Published by Wolters Kluwer on behalf of ASCRS and ESCRS

Automated summary

This study compared the prevalence of rhegmatogenous retinal detachment (RRD) in myopic eyes operated with implantable collamer lens (ICL) surgery with a control group of nonoperated myopic eyes. The results showed that ICL surgery did not affect the prevalence of RRD in operated eyes compared with nonoperated eyes.