Tearing in the wind and lacrimal sac inflammation can cause conjunctivitis, keratitis, etc., resulting in blurred vision. The overflow of tears can cause irritation to the lower lid skin, resulting in roughness of the lower lid skin and, in some patients, lower lid ectropion. The following are the advantages of “silicone tube surgery for tear duct obstruction”: 1. It can be used for chronic dacryocystitis, lacrimal duct stenosis, lacrimal duct dissection and anastomosis, etc. 3.No suture fixation is needed, which does not affect the beauty and daily life. 4.The implanted lead tube can dilate the tear duct and serve as a support after tear duct disconnection anastomosis; the implanted bulbous head tube does not affect normal tear drainage during treatment, and there is no obvious tear overflow symptom; at the same time, it can make the tear duct continuously dilate, which is conducive to the drainage of tears and secretions and the remission of inflammation. 5.Easy to remove the tube. 6.No incision on the face, less pain and less medical expenses, short operation time. 7, the efficacy is certain, very few complications occur.