方法：各种病因引起的小瞳孔并发性白内障58例69眼，术中不用辅助器械和人工机械性扩张瞳孔，采用瞳孔缘放射状剪开，完成白内障原位超声乳化并植入人工晶状体。

结果：术后随访患者视力有不同程度的提高，1.0～0.6者21眼(30.4%)，0.5～0.3者28眼(40.6%)，0.25～0.1者16眼(23.2%)，<0.1者4眼(5.8%)，术后瞳孔较术前均扩大，直径3～4.5mm。62眼(89.9%)瞳孔呈圆形或近似圆形，7眼(10.1%)瞳孔欠规整。无严重并发症。

结论：小瞳孔并发性白内障采用瞳孔缘放射状剪开联合白内障原位超声乳化术，视力恢复良好，并可获得生理性瞳孔。手术方法安全有效。

METHODS: In the various 58 cases(69 eyes)of complicated small pupil cataract surgeries, pupillary margin radial cuts, situ phacoemulsification of cataract and intraocular lens implantation were used to replace assistive devices and mechanical pupil dilation.

RESULTS: The postoperative patients' visions were improved: 1.0 to 0.6 of 21(30.4%), 0.5 to 0.3 of 28(40.6%), 0.25 to 0.1 of 16(23.2%), <0.1 of 4(5.8%); postoperative pupils were expanded to 3 to 4.5mm in diameter; 62(89.8%)of the pupils were circular or near-circular; 7(10.1%)of them were irregular. No serious complications happened.

CONCLUSION: Complicated small pupil cataract surgeries with the radial pupillary margin cuts and cataract situ phacoemulsification can realize visual recovery, and physiological pupils also can be obtained. Surgical methods are safe and effective.