Levin P S, StormoGipson D J
Department of Ophthalmology, Stanford (Calif) University School of Medicine.
Arch Ophthalmol. 1992 Oct;110(10):1488-90. doi: 10.1001/archopht.1992.01080220150037.
In human cadaver specimens, a laser fiberoptic was advanced through the canalicular systems to create fistulas between the nasolacrimal sac and nose. A 400- to 600-microns, blunt-tipped quartz fiberoptic was then advanced through the upper and/or lower canaliculus to the medial aspect of the nasolacrimal sac. After 10 to 15 laser pulses (10 W for 0.1 second), a 2.5 x 2.5-mm fistula was created between the lacrimal sac and the nose just anterior and inferior to the middle turbinate. Additional laser pulses can further enlarge the fistula. Endocanalicular laser-assisted dacryocystorhinostomy has potential advantages compared with endonasal laser-assisted dacryocystorhinostomy, including the following: laser energy is directed away from the eye; the technique resembles standard nasolacrimal probing; and nasal endoscopy and instrumentation may prove unnecessary.
在人体尸体标本中，将激光光纤穿过泪小管系统，在鼻泪囊与鼻腔之间制造瘘管。然后将一根400至600微米、钝头的石英光纤经上泪小管和/或下泪小管推进至鼻泪囊的内侧。在进行10至15次激光脉冲（10瓦，持续0.1秒）后，在中鼻甲前下方的泪囊与鼻腔之间制造出一个2.5×2.5毫米的瘘管。额外的激光脉冲可进一步扩大瘘管。与鼻内激光辅助泪囊鼻腔造口术相比，泪小管内激光辅助泪囊鼻腔造口术具有潜在优势，包括：激光能量远离眼睛；该技术类似于标准的鼻泪管探通术；可能无需鼻内镜检查和器械操作。
