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目的：探讨能有效减轻术后角膜散光的白内障手术切口。方法：对三组１２６例老年性白内障，分别采用三角形切口、弧形切口连续缝合和弧形切口间断缝合，施行白内障囊外摘除术。结果：巩膜三角形切口组术后１周、１、３个月的角膜散光改变明显低于切口连续缝合组及间断缝合组（Ｐ＜０．０５），且视力高于后两者（Ｐ＜０．０５）。结论：巩膜三角形切口为一有效控制术后角膜散光的新切口。
Objective: To investigate the cataract surgery incision which can effectively reduce postoperative corneal astigmatism. Methods: Three groups of 126 cases of senile cataract were treated with triangular incision, continuous incision of curved incision and intermittent incision of curved incision respectively. Extracapsular cataract extraction was performed. Results: The changes of corneal astigmatism in scleral triangular incision group at 1 week, 1, 3 months after operation were significantly lower than those in continuous incision and interrupted suture group (P <0.05), and the visual acuity was higher than the latter two groups (P <0 .05). Conclusion: The scleral triangle incision is a new effective incision control corneal astigmatism.