1, Nasal cavity examination and dacryocyst lipiodol opacification were executive before operation to investigate the reason of recur, and the patients were followed up for 10 to 12 months.

2, The dacryocyst of 7 chronic dacryocystitis cases(8 eyes)were located through nasal cavity guided by endo-ophthalmic optical fiber.

3, Objective:To test the affection of vaseline pledget wadded in the top of dacryocyst .

4, Methods Perforate the outside breastwork of nasal cavity and dacryocyst underwent transnasal endoscopic used microwave and electric drill.

5, The effect can be improved evidently if vaseline pledget is wadded in the top of dacryocyst.

6, Objective To discuss the clinical application value of nasolacrimal duct catheterization with dacryocyst incision.