nasolacrimal duct


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Related to nasolacrimal duct: nasolacrimal duct obstruction

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.
References in periodicals archive ?
Comparison of monocanalicular stenting and ballon dacryoplasty in secondary treatment of congenital nasolacrimal duct obstruction after failed primary probing.
Computed tomography (CT) revealed that the tumor extended to and filled the entire length of the right nasolacrimal duct, from the orbit to the inferior meatus.
In our study, all 3 patients had nasolacrimal duct blockage.
In patients who develop dacryocystitis following nasolacrimal duct obstruction (NLDO), infective materials that accumulate in the sac may enlarge the sac in a form similar to congenital dacryocystocele [3].
Results: Forty-six patients (24 girls (52.2%), 22 boys (47.8%)) diagnosed as congenital nasolacrimal duct obstruction were included in the study.
All symptomatic cases of epiphora, which were diagnosed for primary acquired nasolacrimal duct obstruction or chronic dacryocystitis.
Nasolacrimal duct. The transverse diameter of the NLD bone entrance was significantly smaller in men than in women independently of the age (p = 0.045), we found that this difference was due to the group of men over 40 years, where they showed smaller diameter than women of the same age group (p = 0.04), unlike the group of men under 40 years, where men and women had a similar diameter (p > 0.05).
Following punctum dilation, probing was performed with a Bowman probe (Probe Lachrymal BOWMAN 04-05, Inami, Tokyo, Japan) to confirm the absence of resistance in the lacrimal sac and the nasolacrimal duct (NLD).
One (2.7%) patient was being followed up because of retinal degeneration and underwent surgery in our ophthalmology clinic, and another patient (2.7%) was being followed up and underwent surgery because of a nasolacrimal duct obstruction.
It was reported that the coronal approach was complex and time-consuming for unilateral cases without craniomaxillofacial fractures.[sup][10],[11] To treat the upper nasolacrimal duct obstruction or absence, CDCR with a tear drainage tube placement is an appropriate surgical method.
Ocular habronemiasis occurs more commonly near the conjunctiva, medial canthus, nasolacrimal duct and are raised, ulcerative granulomas, often containing characteristic yellow, plaque-like sulfur granules of 1-2 mm in diameter (Pusterla et al ., 2003; Wilkie, 2004; Pugh et al ., 2014).