J Korean Ophthalmol Soc.  2020 Jan;61(1):59-68. 10.3341/jkos.2020.61.1.59.

Comparison of Visual Acuity and Retinal Thickness According to Membranectomy in Idiopathic Epiretinal Membrane

Affiliations
  • 1Department of Ophthalmology, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Korea. ckseek@naver.com

Abstract

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.

Keyword

Diamond-dusted membrane scraper; Idiopathic epiretinal membrane; Membranectomy

MeSH Terms

Epiretinal Membrane*
Humans
Macular Edema
Membranes
Observational Study
Outcome Assessment (Health Care)
Retinaldehyde*
Retrospective Studies
Surgical Instruments
Visual Acuity*
Vitrectomy
Retinaldehyde
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