Results The lacrimal sac was easily found by this method and the important surrounding tissues, such as the anterior ethmoidal artery, the nasolacrimal canal, the lamin...

• 结果用此法较易寻找到泪囊,不易损伤周围重要组织如筛前动脉、鼻泪管、眶纸样板、前组筛窦等,术后疗效佳,术后造孔不易闭锁。结论内镜下鼻内寻找泪囊法可行,值得推广应用。