笔者在临床工作中,共治疗外伤性泪小管断裂的患者12例,(其中两例为同侧双根泪小管断裂)。在手术吻合方面作了一些改进,现介绍如下: 1.消毒、麻醉。同泪囊手术相似,尽量用神经阻滞麻醉,避免使用浸润麻醉,防止水肿,影响缝合。鼻腔及结膜囊内先滴1％地卡因,3％麻黄素滴同侧鼻腔、收缩下鼻甲,小孩用全麻。术中彻底清除异物。 The author in clinical work, a total of 12 cases of traumatic laceration of the canaliculi, (two cases of ipsilateral double root canal tubule rupture). Some improvements in surgical anastomosis, are as follows: 1. Sterilization, anesthesia. Similar with the operation of the dacryocyst, as far as possible with nerve block anesthesia, to avoid infiltration anesthesia, prevent edema, affect suture. Nasal cavity and conjunctival sac drops first 1% of cocaine, 3% ephedrine drops ipsilateral nasal cavity, contracting the turbinate, children with general anesthesia. Intraoperative completely foreign body removal.