Tear duct obstruction and dry eye are the most common clinical conditions. The causes of tear duct obstruction include inflammation, trauma, tumor, congenital abnormality and parasites, etc. Among them, chronic lacrimal sac inflammation is the most common, manifesting as lacrimation and pus flowing from the eyes, and acute attack with red, swollen and painful skin in the lower part of the inner corner of the eye, which can lead to blindness and even life-threatening intracranial invasion. Dry eye syndrome, on the other hand, is characterized by dry eyes, burning pain, foreign body sensation, etc., and in severe cases, it causes vision loss and blurred vision. The hospital’s Ophthalmology Tear Diseases Center is a specialized diagnosis and treatment center for tear duct obstruction, trauma, tumors, congenital anomalies, lacrimal sacculitis, lacrimal glanditis tear gland prolapse and dry eye disease, and accepts referrals of difficult cases of tear diseases from all over the country. We are the first in China to carry out a series of new technologies and new business, such as: 1. photolacrimal ductplasty and a variety of artificial tear duct placement to treat tear duct obstruction; 2. endoscopic surgery to treat tear duct obstruction and chronic dacryocystitis; 3. “transdermal one-stitch anastomosis” to repair broken tear ducts; 4. saphenous vein graft tear duct reconstruction to treat severe upper and lower tear duct obstruction; 5. 5.Lacrimal duct reconstruction with lip mucosa graft to treat severe upper and lower lacrimal duct obstruction; 6.Suspended anterior flap lacrimal sac nasal anastomosis to treat bony nasolacrimal duct obstruction; 7.Surgical treatment of bulbar conjunctival relaxation and lacrimal caruncle hypertrophy tear overflow; 8.Tear spot embolization to treat dry eye, etc.