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目的探讨梨形撕囊对白内障超声乳化术皮质残留的影响。方法对158例（174眼）白内障应用梨形撕囊法超声乳化术，以31眼的圆形撕囊超声乳化术做对照。结果手术组12点皮质残留有3眼（1．7％），对照组有5眼（16．1％），二者有显著差异（P＜0．01）。结论梨形撕囊法易操作，术后晶状体皮质残留少，值得推广。
Objective To investigate the effect of pear-shaped capsulorhexis on cortical remnant of cataract phacoemulsification. Methods 158 cases (174 eyes) of cataract were treated by pear-shaped capsulorhexis method and 31 cases of circular capsulorhexis phacoemulsification as control. Results There were 3 eyes (1.7%) in control group and 5 eyes (16.1%) in control group (P <0.01). Conclusions The pear-shaped capsulotomy is easy to operate and posterior lens cortex remains less, which is worthy of popularization.