方法：年龄相关性白内障患者400例，随机分为实验组和对照组各200例，实验组采用小切口隧道内分核手法，对照组采用小切口前房内分核手法。

结果：两组术后视力在术后1d和术后1wk均无统计学差异； 两组并发症的发生率实验组较对照组低。

结论：小切口隧道内分核手法是一种安全有效的、特别适用于基层医院白内障复明工程的手术方式。

METHODS: Totally 400 cases with age-related cataract were randomly divided into experimental group(200 cases)and control group(200 cases). Small incision inside the tunnel sub-nuclear techniques was performed on the experimental group, and the control group using small incision inside the anterior chamber nuclear techniques division.

RESULTS: There were no significant differences between two groups in the postoperative visual acuityone day and one week after surgery; the incidence of complications in the experimental group was lower than that in the control group.

CONCLUSION: Small incision cataract extraction inside the tunnel sub-nuclear techniques is a safe and effective operation method, especially suitable in basic-level hospital.