Lacrimal Punctum, Absence


Lacrimal Punctum, Absence

Objective: No identifiable superior and/or inferior lacrimal punctum


The openings of the tear ducts are normally located at the medial margin of each eyelid. The opening on the lower eyelid border is more visible than the opening on the upper eyelid border. Absence of the lacrimal punctum is uncommon [Ferreira et al., [2000]] and although it is typically presumed to be caused by agenesis, we avoid causal mechanisms in this terminology. There was some disagreement as to whether Nasolacrimal duct obstruction should be included in this terminology. As that assessment is primarily functional and not anatomic, it was removed.


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