Conclusion The lacrimal pathway obstruction after external dacryocystorhinotomy can usually be cured by the transnasal endoscopic examination and treatment.

• 结论对经鼻外泪囊鼻腔吻合术后泪道不通病例，鼻内镜下对吻合口进行检查，针对不同情况进行相应处理，常能使病人再次康复。