Choroidal vascularity index changes with phacovitrectomy for vitreoretinal interface disorders
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Date
2022-08
Journal Title
Journal ISSN
Volume Title
Publisher
All India Ophthalmological Society
Abstract
Purpose: Vitreomacular interface disorders have long been argued to change choroidal structure. The aim of this study was to determine the choroidal vascularity index (CVI) changes following internal limiting membrane peeling for epiretinal membrane (ERM) and full thickness macular hole (FTMH). Methods: Fifty-nine patients with unilateral ERM and 56 with unilateral FTMH were included in the study. Axial length, pre- and post-surgery intraocular pressure, baseline and post-phacovitrectomy CVI were calculated and compared with the normal fellow eyes. To compare the baseline and the final measurements, Wilcoxon test was used. Mann–Whitney U test was used for independent data comparisons. Median and standard deviations were compared. Results: Axial length, pre- and post-surgery intraocular pressure differences were insignificant between study and fellow eyes within all groups. CVI were significantly lower in post-vitrectomy study eyes of all groups compared with pre-surgery (P < 0.001). There were no significant changes before and after the surgeries in fellow eyes. Baseline CVI of ERM study eyes (median 65.90%) and FTHM study eyes (median 65.59%) did not differ significantly between groups (U = 1336, P = 0.07, r = 0.16). Conclusion: There are conflicting results of vitreoretinal interface disorders CVI in the literature. In this study, both FTMH and ERM eyes showed reduced CVI postoperatively compared with the baseline. Preoperatively, there were no difference between study eyes and the fellow eyes.
Description
Keywords
Choroidal vascular index, epiretinal membrane, macular hole, optical coherence tomography, vitreomacular surgery
Citation
Ercan Zeynep Eylul, Gokgoz Gulsah, Yilmaz Gursel. Choroidal vascularity index changes with phacovitrectomy for vitreoretinal interface disorders. Indian Journal of Ophthalmology. 2022 Aug; 70(8): 2998-3001