Nasolacrimal Duct Obstruction

Blockage of the drainage system causes tears to well up on the surface of the eye and overflow onto the eyelashes, eyelids, and down the cheek. This usually occurs in children under the age of 1 as a congenital condition but alsooccurs in adults as an acquired condition the first days or weeks of life.

Link: www.aapos.org/terms/conditions/72
emedicine.medscape.com/article/1210141-overview

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