方法：选白内障患者160例160眼，随机分为两组，对照组：行传统手法无缝线小切口非超声乳化白内障手术共75例75眼，试验组：小切口非超声乳化术中改良9：00方位辅助切口患者85例85眼。比较两组患者术后不同时间手术性散光值，术后裸眼视力。

结果：术后1，2wk； 1，3mo时，两组的裸眼视力比较差异统有计学意义(P<0.05)。术后1，2wk； 1，3mo时，两组的手术性散光值比较差异有统计学意义(P<0.05)。

结论：改良小切口非超声乳化术中应用9：00方位辅助切口减少了术后早期手术性散光，同时恢复视力好，具有一定实用性及有效性。

METHODS: Totally, 160 cataract patients(160 eyes)were randomly divided into the observation group(85 cases, 85 eyes)that were constructed 9 o'clock range of auxiliary incision in small incision non-phacoemulsification and the control group(75 cases, 75 eyes)that was operated the traditional manual sutureless in small incision non-phacoemulsification. The operation time of postoperative astigmatism and postoperative visual acuity between the control group and the observation group were compared.

RESULTS: There were statistical significance in visual acuity and the operation astigmatism at 1,2wk,1,3mo(P<0.05).

CONCLUSION:To control 9 o'clock range of auxiliary incision in small incision non-phacoemulsification reduces the operation of postoperative astigmatism and restore good eyesight at the same time, it has certain practicability and effectiveness.