27-gauge microincision vitrectomy surgery system for clinical application

Abstract

Objective To observe the preliminary clinical results and safety of 27-gauge microincision vitrectomy surgery for partial vitreoretinal diseases. Methods A total of 13 patients (13 eyes) who underwent 27-gauge microincision vitrectomy surgery were enrolled. The follow-up period was 6 to 12 months. Preoperative and postoperative visual acuity and intraocular, total operative time, cutting time for removing vitreous, wound healing status, intraoperative and postoperative complications were observed. Results Mean best corrected visual acuity improved from preoperative (1.26±0.66) logMAR (0.10±0.09) to postoperative (0.63±0.52) logMAR (0.35±0.24), and the difference was statistically significant (t=2.743, P=0.018). The difference of mean preoperative intraocular pressure (IOP), IOP of postoperative day 1, day 5, one month and final postoperative visit were not statistically significant (F=0.593, P>0.05). The mean total operative and cutting times were (36.38±14.97) min and (10.12± 3.54) min respectively. Postoperative scleral incision showed linear closure, no cases of postoperative sclerotomy-related complications such as wound dehiscence, vitreous incarceration and subconjunctival fluid were observed. No intraoperative and postoperative complications of iatrogenic retinal breaks, endophthalmitis, choroidal detachment, retinal detachment and vitrous hemorrhage were observed. Conclusions The 27-gauge microincision vitrectomy surgery can improve postoperative visual acuity for treatment of vitreoretinal diseases and induce fewer sclerotomy-related complications, which maybe a safer surgical approach. Key words: Vitrectomy; Microincision; Clinical efficacy