Longitudinal changes in macular thickness after retropupillary iris claw intraocular lens implantation: A 1-year observational study and comparison with scleral fixated intraocular lenses

Abstract

Objective: To evaluate longitudinal changes in macular thickness after retropupillary iris claw intraocular lens (RP-ICIOL) implantation in eyes with post-cataract aphakia and to compare the results with scleral fixated intraocular lens (SFIOL). Material and Methods: The patients were enrolled between 2013 to 2016. Patients were divided into two groups as the ones with RP-ICIOL implanted eyes and SFIOL implanted eyes. Preoperatively and within 1 year postoperatively macular thickness were analysed. Results: RP-ICIOL group consisted of 22 eyes of 22 patients, SFIOL group consisted of 36 eyes of 36 patients. In RP-ICIOL group, statistically significant thickening in central foveal [1 mm, central foveal thickness (CFT)] macular thicknesses was observed firstly at 1st week and progressively increased during the 3 months (p<0.001). However mean CFT reduced to baseline values at 1 year postoperatively in RP-ICIOL group (p=0.070). No statistically significant difference was found in the macular thicknesses measurements between the groups during the 1 year follow-up (p>0.050). CME was observed in 1 eye in RP-ICIOL group (4.54%), and 2 eye in SFIOL group (5.55%). Conclusion: The transient and subclinical macular thickening presented in all macular zones after RPICIOL implantation. These thickening started at first week, and progressively increased in the period of 3 months, then it reduced to baseline values at 1 year postoperatively. RP-ICIOL and SFIOL have similar effects on macular thickening.