nasolacrimal duct


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Related to nasolacrimal duct: nasolacrimal duct obstruction
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  • noun

Words related to nasolacrimal duct

a duct that carries tears from the lacrimal sac to the nasal cavity

References in periodicals archive ?
In obstructive cases, dacryocystorhinostomy (endonasal or external) and Lester Jones tubes are the surgical options for nasolacrimal duct and canalicular obstruction, respectively.
Neonatal respiratory distress: Sequela of bilateral nasolacrimal duct obstruction.
The favoured aetiological theory, posited by Bruggeman in 1920, suggests an origin from the remnant of the embryonic nasolacrimal duct, and is is supported by the fact that both the nasolacrimal duct and nasolabial cysts are lined by the same pseudostratified columnar epithelium, and also by the fact that the cyst is located subjacent to the wing of the nose, in line with the naso-optic fissure.
Nasolabial cysts are found near the distal portion of the nasolacrimal duct and its opening into the inferior nasal meatus.
An even less-common anomaly is cystic dilation of the lower end of the nasolacrimal duct with intranasal extension.
It over-hangs and delineates the inferior meatus, which is anatomically significant only for the nasolacrimal duct orifice that opens at the anterior end of the meatus.
The two most inferior ostia represent the openings of the nasolacrimal duct and the eustachian tube.
The alternative, dacryocystoplasty, involves expansion of the nasolacrimal duct with a balloon.
Orbital complications secondary to endoscopic sinus surgery include extraorbital muscle damage, nasolacrimal duct or sac injury, optic nerve injury, and intraorbital hemorrhage or emphysema.
Regarding expansion of the medical and health care products business, Howard also stated, "We recently purchased from Chiron Vision Corporation the worldwide licensing and manufacturing rights to a semi-flexible balloon catheter used to clear obstructions in the nasolacrimal duct.
Dacryocystitis is an infection of the lacrimal sac that is usually caused by obstruction of the nasolacrimal duct.
The primary product is a sterile, single-use, semi-flexible balloon catheter used to clear obstructions in the nasolacrimal duct which cause excessive tearing of the eye.
Other surgeries, such pterygium surgery, conjunctiva scar removal, nasolacrimal duct surgery, etc.
The lacrimal apparatus consists of two canaliculi in the upper and lower eyelids that drain tears into the lacrimal sac and ultimately into the nose through the nasolacrimal duct.