[Objective] To evaluate the clinical efficacy of implanting plug into the lacrimal channel for treatment of the dry eye.

Objective To explore the effective medicine which can improve the curative rates of laserplastic operation in lacrimal duct occlusion.

Lacrimal passage protect and repair in combined access of sinus maxillaris and pyriform aperture;

After dredging lacrimal passages,all patients were followed up for 24～36 months.

Research progress in epidemiology of lacrimal duct obstruction diseases;

Clinical application of spiral CT in diagnosis of lacrimal duct obstruction;

The therapeutic effects of Nd:YAG laser combined with silicone intubation for lacrimal duct obstruction;

Clinical report on the lacrimal duct reconstruction with grafting of autogenous tissue via nasal endoscopic dacryocystorhinostomy;