1.What causes “tear duct obstruction”? Tear duct obstruction in infants is usually congenital. However, symptoms usually appear around 10 to 30 days. Some are secondary to inflammation or trauma of the eye, which is rare. 2.Is all tearing “lacrimal obstruction”? Tear duct narrowing, impingement, conjunctivitis, keratitis, etc. may also cause tearing. 3.Can “tear duct obstruction” be cured with medicine? In mild cases, the blocked area can be opened by continuous massage and external force by squeezing the tear sac area. 4.Does “tear duct irrigation” have to be performed for “tear duct obstruction”? No. “Tear duct flushing” is a very effective treatment, which can cleanse the deep nasolacrimal duct and reduce inflammation; it is also the best means to clarify the diagnosis. 5.Is there any harm in “tear duct irrigation”? No, there is no harm under the regular operation. Tear duct irrigation in children is a quick and painless procedure that does not require anesthesia. Small babies may experience local redness and swelling, or even a small amount of light pink blood, but they will recover quickly within 2-4 hours and will not be affected in any way. 6.What are the serious consequences of “tear duct obstruction”? Mainly, it causes infection. Acute infection: acute dacryocystitis; serious can even lead to orbital cellulitis, meningitis. Chronic infection: long-term tears in the eye, secretion, causing eczema and ulceration of the surrounding skin, difficult to heal. 7.Does “tear duct obstruction” require surgery? About 1/3 of children need surgery. 8.Can “lacrimal duct obstruction” heal on its own? About 2/3 of children can heal on their own or with conservative treatment. Self-healing is by 3 months of age. Conservative treatment is by 6 months. 9.When should I have surgery for “lacrimal duct obstruction”? 6 months. However, if a child has severe ocular symptoms, the time of surgery can be earlier. 10.What kind of surgery should I choose for “lacrimal duct obstruction”? There are two types of surgery: local and general anesthesia. Local anesthesia surgery is fast and can be done on the same day, but the success rate is 60-70%. The success rate of general anesthesia surgery is 95-99%, but you need to make an appointment and be hospitalized for 2-3 days, and you need regular follow-up after the surgery. Both local and general anesthesia surgery are harmless under regular operation. It is recommended that children 6 months of age first choose local anesthesia surgery, and then consider general anesthesia surgery if recurrence occurs after surgery. However, local anesthesia is not recommended for secondary “tear duct obstruction” or if there is a history of previous eye surgery.