作者应用有侧方开口之聚乙烯管作为泪小管插管以治疗总泪小管阻塞。在行鼻泪道吻合术的同时,探通总泪小管,将聚乙烯管的两端分别自上下泪小点插入泪囊,并循骨窗引入鼻腔。在泪囊及新建之通道内再放置一根导管,而将聚乙烯管的两端都自此导管内引出前鼻孔,导管于术后一周抽去, The authors applied a polyethylene tube with a lateral opening as a canalicular tube for the treatment of total lacrimal duct obstruction. In the line of nasolacrimal duct anastomosis at the same time, probing the total lacrimal duct, the polyethylene tube ends were punctured from the upper and lower tears into the lacrimal sac, and the introduction of bone marrow through the nasal cavity window. In the lacrimal sac and the new channel and then placed a catheter, and both ends of the polyethylene tube leads from the catheter before the nostril, the catheter removed after a week,