| 摘要 |
Method for performing transcanalicular dacryocystorhinostomy which comprises the steps of inserting of a suitable fiber optic which is connected to a solid state laser that emits a laser beam with a wavelength of about 700 nm to about 1600 nm through a lacrimal duct, using an endonasal endoscope to position an end of the fiber optic to a location where perforation is to be formed, firing the laser until perforation to form an osteotomy, and optionally enlarging of the osteotomy.
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