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Lacrimal Duct Obstruction MeSH Descriptor Data 2023

MeSH Heading
Lacrimal Duct Obstruction
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Scope Note
Interference with the secretion of tears by the lacrimal glands. Obstruction of the LACRIMAL SAC or NASOLACRIMAL DUCT causing acute or chronic inflammation of the lacrimal sac (DACRYOCYSTITIS). It is caused also in infants by failure of the nasolacrimal duct to open into the inferior meatus and occurs about the third week of life. In adults occlusion may occur spontaneously or after injury or nasal disease. (Newell, Ophthalmology: Principles and Concepts, 7th ed, p250)
Entry Term(s)
Nasolacrimal Duct Obstruction
Tear Duct Obstruction
NLM Classification #
WW 208
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Lacrimal Duct Obstruction Preferred
Nasolacrimal Duct Obstruction Narrower
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