Surgical outcomes and risk factors of recurrent retinal re-detachment after silicone oil removal

• 1、Eye Center, Renmin Hospital of Wuhan University

Abstract：Objective: To evaluate the risk factors and choices of surgeries of recurrent retinal redetachment (RRD) after silicone oil removal for complex retinal detachment. Methods: This retrospective study included 1129 consecutive patients who underwent pars plana vitrectomy （PPV） with silicone oil tamponade for complicated retinal detachment. Results: Retrospective review yielded 1129 eye of 1129 patients and anatomical success was not achieved in 52 patients (52 eyes, 4.40%) after silicone oil removal. 52 cases were underwent PPV combined silicone oil/C3F8 tamponade with the successful rate of reattachment of 96.15% whereas 2 cases were recognized as oil-dependent eyes. Conclusions: Inadequate vitreous base shaving, vitreous hemorrhage at the first week postoperative, retinal detachment etiology and lack of intraoperative scleral buckling were significant risk factors for RRD after silicone oil removal. We speculate that, if inferior RRD, with multiple tiny close retinal breaks, the coexistence of high grade PVR leading to shorten or reduced area of retina were existed, reitnotomy combined with scleral buckling should be done decisively. Postponing laser photocoagulation may merit consideration and reserve more vision acuity remaining.

Keywords： Recurrent retinal redetachment Risk factor Choice of operation Silicone oil removal