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目的：探讨白内障超声乳化人工晶体植入术发生主要并发症的原因与防治方法。方法：对60例、64眼白内障施行超声乳化术，植入PMMA后房型人工晶体。结果：主要并发症中为后囊膜破裂6眼(9.38%)，角膜水肿12眼(18.7%)。术后1周视力0.5以上56眼(87.5%)，0.2～0.5者8眼(12.5%)。结论：后囊膜破裂及角膜内皮损伤是白内障超声乳化术发生并发症的主要原因，术中应根据后囊膜破裂的大小采取措施，提高操作技能。术中各个环节正确操作可避免损伤内皮角膜。“,”Objective:To analyze the cause and prevention of complications in phacoemulsification.Method:Phacoemulsification with PMMA posterior chamber IOL implantation were performed on 64 eyes of 60 patients.Results:In the major complications,posterior capsule rupture occurred on 6 eyes(9.38%) and cornea edema on 12 eyes(18.7%). Postoperatively 1 week,the visual acuity better than 0.5 happened in 56 eyes(87.5%) and the visual acuity of 0.2～0.5 was in 8 eyes(12.5%).Conclusion:Posterior capsule rupture and corneal endothelium injury are the main reasons caused complications in phacoemulsification. Correct and careful operation can reduce the occurrence ratio of complications.