Clinical Characteristics and Treatment of Silicone Oil Entry into the Anterior Chamber Early Following Retinal Detachment Surgery with Lens
Objective:To analyze the clinical characteristics and treatment of silicone oil entry into the anterior chamber early following primary rhegmatogenous retinal detachment surgery with lens.Methods:The general data and related ophthalmic examination results of 126 patients(126 eyes)with primary rhegmatogenous retinal detachment with lens,treated in our hospital from June 2022 to January 2024,were collected and retrospectively analyzed.All patients underwent simple vitrectomy combined with silicone oil tamponade.Silicone oil entry into the anterior chamber within one week after surgery was defined as silicone oil early entry.Based on whether silicone oil entered the anterior chamber early or not,the patients were divided into two groups:observation group and control group.General data,best corrected visual acuity,diopter,preoperative and postoperative intraocular pressure,proliferative vitreoreti-nopathy classification,hole size,preoperative choroidal detachment or not,and other related parameters were compared between the two groups.Results:Early entry of silicone oil into the anterior chamber occurred in 17 out of 126 eyes following primary rhegmatogenous retinal detachment surgery.The proportion of silicone oil entry into the anterior chamber early in eyes with lens was 13.49%(17/126).Early entry of silicone oil into the anterior chamber was found to be associated with high myopia(≥-6.0D),severe proliferative vitreoretinopathy(PVR≥C2),rhegmatogenous retinal detachment-related giant retinal tears and preoperative choroidal detachment(P<0.05).In the observation group,12 eyes developed intraocular hypertension,among which 5 eyes had inadequate control after conservative treatment.These eyes underwent inferior peripheral iridectomy combined with a prone position to facilitate the silicone oil go back to the vitreous cavity,resulted in gradual control of intraocular pressure.Conclusion:High myopia,PVR≥C2,rhegmatogenous retinal detachment-related giant retinal tears and preoperative choroidal detachment are risk factors for silicone oil entry into the anterior chamber early following vitrectomy combined with silicone oil tamponade for primary rhegmatogenous retinal detachment in patients with lens.For patients who experience silicone oil entry into the anterior chamber and have poor control of intraocular pressure under conservative treatment,inferior peripheral iridectomy can effectively promote the return of silicone oil to the vitreous cavity,thereby controlling intraocular pressure and reducing damage to optic nerve and corneal endothelial cells.