[The risk factors of proliferative vitreoretinopathy after operation of retinal detachment].

160 failure cases (160 eyes) following retinal reattachment surgery were reviewed. 62 cases with proliferative vitreoretinopathy were divided into proliferative vitreoretinopathy (PVR) group, the other cases (98 cases) without PVR changes were divided into NO PVR group. The clinical characteristics of two groups were compared in order to determine the risk factors in the development of server PVR after surgical repair of retinal detachment. The study shows that retinal detachment with uveitis and low tension, preoperative and post-operative vitreous hemorrhage, multiple operations were the highly significant risk factors. Once these factors existed simultaneously, the incidence of PVR increased. The way how to prevent and decrease the occurrence of PVR were suggested in the series.