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目前,对泪小管系统闭塞而不能用其它方法修复的患者;作结膜泪囊鼻腔吻合术是重建泪液引流系统的选择性方法。有采用预先模压的硅胶,从结膜通向鼻泪管,开口在下鼻甲下方;有将一根长而带凸缘的Teflon管从结膜通向骨性鼻泪管,开口在下鼻甲下方;而最流行的是Jones设计的改良方法,自泪鼻区插入Pyrex管,经鼻泪道吻合的骨孔、在中鼻甲前面进入鼻腔,管向后向下弯斜,使泪液引流。但术后管道可能闭塞,在术后早期甚或在调整Pyrex管时此管可能意外地脱出。
At present, patients who have occlusion of the canalicular system that can not be repaired by other means; and conjunctival dacryocystorhinostomy are an alternative method of reconstructing the tear drainage system. There is a pre-molded silicone that passes from the conjunctiva to the nasolacrimal duct and opens below the inferior turbinate; a long, flanged Teflon tube leads from the conjunctiva to the osseous nasolacrimal duct with the opening below the inferior turbinate; and the most popular The modified version of Jones’s design was inserted into the Pyrex tube from the nasolacrimal area, through the ostium of the lacrimal passage, into the nasal cavity in front of the middle turbinate, and the tube was angled downward to allow drainage of the tears. However, the postoperative tube may be occluded, and the tube may accidentally come out early after surgery or even while adjusting the Pyrex tube.