METHODS: The medial broken end of the disrupted canaliculus of 50 cases (50 eyes) were searched under operating microscope, and epiclural catheters were used as supporters for the operation.

• 方法:在显微镜下直接寻找断裂的下泪小管泪囊侧开口,以硬膜外导管作为支撑吻合泪小管断端。