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Comparison of Visual Acuity and Retinal Thickness According to Membranectomy in Idiopathic Epiretinal Membrane
특발망막앞막에서 막제거술에 따른 시력 및 망막두께 변화 비교
JKOS 2020 Jan;61(1):59-68
Published online January 15, 2020;
Copyright © 2020 The Korean Ophthalmological Society.
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Charm Kim, MD, Hae Jung Sun, MD, Sung Jin Lee, MD, Kyung Seek Choi, MD
김 참 · 선해정 · 이성진 · 최경식

Department of Ophthalmology, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Korea
순천향대학교 의과대학 서울병원 안과학교실
Received June 13, 2019; Revised August 19, 2019; Accepted December 30, 2019.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Purpose: To compare the visual acuity and retinal thickness in patients with an idiopathic epiretinal membrane (ERM) after vitrectomy and membranectomy using two different methods.
Methods: This retrospective observational study included 77 eyes (32 eyes in the diamond-dusted membrane scraper [DDMS] group, and 45 eyes in the intraocular forceps [IOF] group) of 77 patients with idiopathic ERM who underwent pars plana vitrectomy and membranectomy. The main outcome measures were best-corrected visual acuity (BCVA, logMAR) and mean retinal thickness.
Results: In the IOF group, the BCVA at postoperative 1 week was significantly lower than at baseline and had improved at 12 weeks after surgery. In the DDMS group, the BCVA at postoperative 1 week showed no significant difference at baseline and had improved at 4 weeks after surgery. The central macular thickness at postoperative 6 months was significantly lower than at baseline (all, p < 0.001); there was no significant difference between the two groups (p = 0.400). The postoperative macular thickness of the DDMS group was significantly lower than that of the IOF group in the inner inferior and outer inferior areas at postoperative 12 weeks and 4 weeks (p = 0.046 and p = 0.039, respectively). Five eyes of the DDMS group and 15 eyes of the IOF group developed cystoid macular edema, 14 eyes of that improved without treatment.
Conclusions: In patients with ERM, the use of DDMS or IOF for vitrectomy and membranectomy both resulted in improved visual acuity and decreased mean retinal thicknesses.
Keywords : Diamond-dusted membrane scraper, Idiopathic epiretinal membrane, Membranectomy


February 2020, 61 (2)