方法：选择2012-07/2016-03在基层防盲治盲中的过熟期白内障患者58例66眼，分别随机采用水下气泡法撕囊改进白内障小切口手术(30例36眼)与常规黏弹剂下撕囊白内障小切口手术(28例30眼)，比较两组患者术后疗效。

结果：患者66眼术中连续环形撕囊成功率：水下气泡法92%(33/36眼)，黏弹剂法40%(12/30眼)。两组患者角膜内皮细胞密度术后均较术前有明显减少，差异无统计学意义(P>0.05)。

结论：水下气泡法撕囊对解决过熟期白内障手术撕囊困难提供了一种很好的尝试。

METHODS: From Jul. 2012 to Mar. 2016 at the grassroots of blindness 58 people fail in the 66 eyes overmature period of cataract were randomly divided into underwent capsulorhexis by underwater bubble method to improve the small incision cataract surgery group(36 eyes of 30 cases)and conventional viscoelastic agent underwent capsulorhexis small incision cataract surgery group(30 eyes of 28 cases).

RESULTS: A total of 66 eyes in success rate of continuous circular capsulorhexis: 92%(33/36 eyes)of underwater bubble method, method of viscoelastic agent only 40%(12/30 eyes). Two groups of cases of postoperative corneal endothelial cell density are compared with preoperative significantly reduced, no significant statistical difference between the two groups(P>0.05).

CONCLUSION: Underwater bubble method capsulorhexis difficult to overmature period of cataract surgery capsulorhexis solution is a better way.