复习２７９眼首次单行巩膜扣带手术的病例，从患眼术前的条件探讨影响手术效果的因素，主要有３个方面，第１是术前ＰＶＲ的严重程度；第２是裂孔的大小；第３是术前并发症如葡萄膜炎、玻璃体出血及脉络膜脱离。针对病情选择适当的手术方式对提高手术成功率很重要。如ＰＶＲ累及眼底不超过３个象限者可选择单纯巩膜扣带术，累及更大范围则应选择玻璃体切除术。 Review of 279 cases of the first single scleral buckling surgery cases, from preoperative conditions to explore the impact of surgical factors, there are three aspects, the first is the severity of preoperative PVR; the second is the size of the hole; the first 3 is preoperative complications such as uveitis, vitreous hemorrhage and choroidal detachment. Choosing the right surgical procedure for the condition is important for improving the success rate of the procedure. Such as PVR involving the fundus of less than 3 quadrants can choose simple scleral buckling, involving a wider range should be selected vitrectomy.