ObjectiveTo explore the clinical efficacy of 360 degrees intraocular photocoagulation combined with perfluorocarbon liquid-silicone oil exchange on retinal detachments with giant retinal tear. MethodsFifty cases (15 eyes) of retinal detachments with giant retinal tear were enrolled in our study. All cases underwent pars planar vitrectomy(PPV)、360 degrees intraocular laser photocoagulation combined with perfluorocarbon liquid-silicone oil exchange under operation microscope,four of them combined with cataract extraction due to cataract concurrently. The reattachment rate, visual acuity and complications were examined. ResultsAfter operation,the mean follow-up period was 14.3 months (range 6 to 24 months). Thirteen of 15 eyes(86.7%) achieved retinal reattachment after the initial surgery. Owing to postoperative PVR induced retinal holes remained opened, 2 of 15 eyes (13.3%) were redetach under silicone oil tamponade after the surgery 3 weeks to 3 months. Among 12 cases which removed silicone oil, recurrent retinal detachment occurred in 2 cases. Postoperative acute vision improved in 12 cases, remain unchanged in 2 cases and decreased in 1 case. As compared with preoperative blindness rate(80%), the postoperative blindness rate(26.7%) was significantly decreased(χ2=10.5263, P＜0.05). Postoperative cataract was observed in 6 of 11 phakic eyes, ocular hypertension in 5 of 15 eyes and subretinal hemorrhage in 1 of 15 eyes. ConclusionsPPV、360 degrees intraocular photocoagulation combined with perfluorocarbon liquid-silicone oil exchange under operation microscope can achieve favorable6 anatomical and visual results in the treatment of retinal detachments with giant retinal tear.

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