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nasolacrimal duct

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nasolacrimal duct

[¦nā·zō′lak·rə·məl ′dəkt]
(anatomy)
The membranous duct lodged within the nasolacrimal canal; it gives passage to the tears from the lacrimal sac to the inferior meatus of the nose.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
Also, the lower eyelid sagging away from the eye, eyelids that roll inwards, inflammation of the edges of the eyelids, blocked or narrowed tear ducts, eye irritation, an eye infection or an allergy, can cause watering.
Watery eyes often occur in response to chronic sinus problems, allergies, or infections, which contribute to blockage of the tear duct. In some instances, treating these conditions may help with watery eyes.
The purpose of the tear duct is to sweep tears and moisture from your eyes.
If the drug flows toward the tear duct, systemic absorption through nasal mucosa can occur.
Dacryostenosis (obstruction of the tear duct) is a fairly common problem oin infants.
[USPRwire, Wed Nov 14 2018] Tear duct plugs are small-sized, biocompatible medical devices that are inserted into the tear ducts to block the drainage.
In the same match, he was very unhappy with the challenge that led to Mark Flanagan needing an operation on a blocked tear duct.
He said if it was no better then Sooty could have a blocked tear duct that may need flushing out.
There may be two causes; the first is a blockage of the tear duct. The other is a disease called chronic dacryocystitis - this is inflammation of the tear gland that leads to pus forming in the eye that then blocks the tear duct.
"There's a tiny channel called the tear duct that connects each eye with your nose," explains Dr.
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