Comparative study of straight vs angled incision in 27-gauge vitrectomy for epiretinal membrane

Ryo Yomoda, Hiroki Sasaki, Jiro Kogo, Akira Shiono, Tatsuya Jujo, Reio Sekine, Naoto Tokuda, Yasushi Kitaoka, Hitoshi Takagi Department of Ophthalmology, St Marianna University School of Medicine, Kawasaki, Kanagawa, Japan Purpose: The purpose of this study was to compare straight and angled incisions in 27-gauge microincision vitrectomy in patients with epiretinal membrane (ERM).Methods: Seventy-three eyes of 68 patients with ERM who underwent straight (35 eyes) or angled incision (38 eyes) for 27-gauge microincision vitrectomy were retrospectively evaluated.Results: No statistically significant difference was found between the two groups in postoperative logarithm of minimal angle of resolution best-corrected visual acuity. The intraocular pressure and rate of hypotony 1 day postoperatively did not differ between the straight- and angled-incision groups (intraocular pressure: 11.5 vs 13.4 mmHg, respectively; rate of hypotony: 20% vs 8%, respectively). Surgical wound closing occurred by postoperative day 10 in both groups.Conclusion: A straight incision is as safe and useful in ERM vitrectomy as an angled one. Keywords: 27-gauge vitrectomy, MIVS, epiretinal membrane, straight incision, angled incision, anterior segment OCT&nbsp