What is meant by lacrimal tract disease The lacrimal tract includes the tear dots, tear ducts, tear sacs, nasolacrimal ducts, etc. Tear duct disease mainly refers to the occurrence of obstruction in the tear duct (including upper and lower lacrimal duct obstruction, common lacrimal duct obstruction, nasolacrimal duct obstruction and chronic dacryocystitis, etc.). Patients with this type of eye disease often have symptoms such as overflowing tears and pus, which cause endless troubles and pain, and as potential foci of infection, may cause corneal ulcers and affect the implementation of internal eye surgery. The dangers of lacrimal duct disease Long-term tearing in patients with lacrimal duct obstruction not only affects vision, but also hinders cosmetology, and patients with chronic dacryocystitis are also accompanied by pus flowing from the corners of the eyes. This patient has a large number of bacteria in the tear sac, which is a potential threat to the eyes. Several common tear duct diseases 1, acute dacryocystitis Most of them are caused by chronic dacryocystitis. The skin of the tear sac area is red, swollen, painful and indurated, and in severe cases there may be general discomfort and fever. When the abscess matures, it can be punctured by the skin surface and form a fistula. In the acute stage, systemic antibiotics should be applied, and after the acute inflammation subsides, it should be treated according to the principles of chronic dacryocystitis treatment. 2, chronic dacryocystitis chronic inflammation due to obstruction of the nasolacrimal duct, bacteria and tear accumulation in the blocked tear sac, and often stimulate the mucosa of the tear sac wall. Tearing is the prominent symptom. When the lacrimal sac is squeezed with a finger, a large amount of mucus or pus may return from the tear duct into the conjunctival sac. If not actively treated, it may develop into acute dacryocystitis, cellulitis and tear sac flush abscess. The bacteria often enter the conjunctival sac, causing conjunctivitis that does not heal over the years. If there is damage to the cornea, it can cause severe septic corneal ulcers. Treatment is to squeeze out the pus at any time, apply local antibiotic eye drops, and flush the tear sac with saline or antibiotics every day or every other day until the pus disappears, and then consider exploring the passage, but most cases require surgical treatment. 3.Blocked lacrimal duct is one of the most common clinical eye diseases, characterized by lacrimation or with discharge, seen in patients of all ages. 4. Tear dots and tear duct disease Tear dots ectropion: lower eyelid ectropion caused by various reasons is inevitably accompanied by tear dots ectropion, so that the tear dots cannot be in close contact with the surface of the eye and tears cannot enter the tear ducts and spill out. The principle of treatment is to surgically correct the ectropion. Chronic conjunctivitis, trachoma, blepharitis, traumatic scar formation, etc. can cause narrow windows or occlusion of the lacrimal dots and tear ducts. In the case of tear duct occlusion, a tear duct dilator is used to fully dilate the tear duct, and the duct is probed with a lacrimal probe. When the tear duct is severely blocked and cannot be probed, surgery can be tried.