Epiphora describes excessive eye watering. Allergies, infection, or a clogged tear duct often cause it. Learn about causes, ...

Epiphora is a very common symptom and will become more common in an aging population. Many causes of epiphora are unrelated to anatomical problems in the nasolacrimal drainage apparatus. Problems ...

The lower lacrimal drainage system consists of the lacrimal sac and the nasolacrimal duct; the nasolacrimal duct drains below into the inferior meatus of the nose. The various valves and sinuses ...