Assertion: tear duct | /r/HasProperty | nasolacrimal
Facets:
Source sentences:
text: Epiphora is characterized by an abnormal flow of tears from the eyes, usually occurring as a result of poor eyelid function, blockage of the nasal and eye portion of the tear ducts (nasolacrimal), or eye infection or inflammation, which may all be precipitated by by dental disease or tooth abscess.