The drainage outflow system of our tears starts from the inner corner of the eye and it passes through ducts that connect it to the nose. Any obstruction to this system will give rise to a backflow of tears perceived as excessive tearing or sticky mucous discharge by patients.

Nasolacrimal Duct Obstruction

The obstruction may be due to inflammation, infection, stricture formation or narrowed ducts. Oculoplastic surgeons carry out bypass surgery of the obstructed tear drainage system to restore the flow.