The authom analysed the predisposing factors for macular pucker(MP) after retinal dotachment surgery.Thirteen clinlcal risk factors correlated with the development of MP were identified, As the incidence related to various factors was compared with reported in the literature,the most significant 3 risk factors of MP were: the obvious hemorrhage accumulated in maeular area, the macular hole treated with diathernly,and the patient lay on one's back for approximately 2 weeks during postoperative retard absorption of subretinal fluid in the eyes with preoperative PVR,This suggested that the direct or indirect damage of maeular area was the major cause of development of MP. （Chin J Ocul Fundus Dis,1993,9:8-10）
PURPOSE：To search for the treatment of recurrent detachment of retina with severe proliferative vitreretinopathy(PVR) by vitreoretinal surgery. METHODS:Fourty-seven cases of recurrent detachment of retina with severe PVR treated by vitrectomy between September 1987 and Noverber 1994 were systematically reviewed. RESULTS:On discharge from the hospital,the retina was totally reattached in 30(63.8%)of the 47 cases,partially reattached in 9 cases (19.1%)and still detached in 8 cases(17.1%). CONCLUSIONS:In addition to using the surgical procedures similar to the conventional vitreoretinal surgery,the histopathological change induced by the previous operation in sick eyes should be paid attention to. （Chin J Ocul Fundus Dis,1996,12: 10-12）