探讨手术显微镜下使用表面麻醉行泪小管断端吻合的手术疗效。 方法：新鲜外伤性下泪小管断裂伤21例21眼，采用表面麻醉的方法，显微镜下行泪小管断端吻合术。 结果：所选21例均一次吻合成功。术后8～12wk拔管,随访6～24mo,治愈19例（90%）,好转2例（10%）。 结论：采用表面麻醉的方法，在手术显微镜下行泪小管断裂吻合术成功率高,易于寻找断裂的断端，操作准确方便，值得推广

To evaluate the clinical effect of the lacrimal canalicular anastomosis by using topic anesthetics under microscope. METHODS: The medial broken ends of the disrupted canaliculi of 21 cases 21 eyes were researched under microscope,and by using topic anesthetics, epidural catheters were used as supports for anastomosis. RESULTS: The anastomos was successful in 19 cases 19 eyes, and improved in 2 cases 2 eyes. CONCLUSION: All 21 cases of anastomosis were succeeded in the first time of operation, extubation was done 812 weeks postoperatively, and the followup ranged 624 months. The lacrimal canalicular anastomosis is safe and effective by using topic anesthetics, and the clinical effect of the operation is good and worthy of being spread.