OBJECTIVE: To investigate the treatment of retinal redetachment after vitrectomy and silicone oil tamponade, METHODS: Investigating retrospectively on the treatment effect of 8 cases of redetachment of retina with proliferative vitreoretinopathy(PVR) in which the retinas had been attached formerly after vetrectomy and silicone oil tamponade opertion. The reoperative procedures included pars plana vitrectonly, membranes peeling, retinotomy, inner exchange of the fluid and silicone oil tamponade and subretinal membranes were removed out in 2 eyes. RESULTS: Six eyes had anatomical reattachment postoperatively and another 2 eyes still had inferior shallow retinal detachment. Visual acuity was improved in 6 patients and remained unchange in 2 patients. CON CLUSIONS: The cause of recurrent retinal detachment might be the formation of the proliferative epiretinal and subretinal membranes, and vitrectomy to release the traction of proliferative membranes and full fluid silicone oil exchange should do good to reattachment.