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Nasolacrimal duct obstruction information


Nasolacrimal duct obstruction
Other namesDacryocystitis
Tear system consists of lacrimal gland (a), punctums (b,e), canalicules (c,f), lacrimal sac (d). Tear is then drained through nasolacrimal duct (g) into nasal cavity
SpecialtyOphthalmology
Differential diagnosisTears arising from lacrimal sac fistula.[1]

Nasolacrimal duct obstruction is the obstruction of the nasolacrimal duct and may be either congenital or acquired. Obstruction of the nasolacrimal duct leads to the excess overflow of tears called epiphora.[2]

  1. ^ Nerad, Jeffrey A.; Carter, Keith D.; Alford, Mark (2008). "Disorders of the Lacrimal System: Congenital Obstruction". Oculoplastic and Reconstructive Surgery. Elsevier. pp. 131–137. doi:10.1016/b978-0-323-05386-0.50010-7. ISBN 978-0-323-05386-0. This tearing is different (from Dacryocystitis), as it originates from the fistula located below the eyelid on the cheek (may be associated with nasolacrimal duct obstruction).
  2. ^ Cite error: The named reference yanoff was invoked but never defined (see the help page).

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Nasolacrimal duct obstruction

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Nasolacrimal duct obstruction is the obstruction of the nasolacrimal duct and may be either congenital or acquired. Obstruction of the nasolacrimal duct...

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Nasolacrimal duct

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2024-06-01. The nasolacrimal duct (also called the tear duct) carries tears from the lacrimal sac of the eye into the nasal cavity. The duct begins in the...

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Dacryocystitis

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Dacryocystitis is an infection of the lacrimal sac, secondary to obstruction of the nasolacrimal duct at the junction of lacrimal sac. The term derives from the...

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Dacryocystocele

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consequence of narrowing or obstruction of the nasolacrimal duct, usually during prenatal development. Nasolacrimal duct obstruction disrupts the lacrimal drainage...

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Down syndrome

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they are not visually significant. Strabismus, nystagmus and nasolacrimal duct obstruction occur more frequently in children with Down syndrome. Screening...

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Silastic

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tubing, wound dressings, silos for abdominal wall defects, and nasolacrimal duct obstruction. These medical-grade elastomers are also used in the manufacture...

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Oculoplastics

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procedure External or Endoscopic Dacryocystorhinostomy (DCR) for nasolacrimal duct obstruction Canalicular trauma (canalicular laceration) repair Canaliculodacryocystostomy...

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Dacryocystorhinostomy

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restore the flow of tears into the nose from the lacrimal sac when the nasolacrimal duct does not function. A small incision is made on the side of the nose...

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Nasolacrimal duct cyst

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Habibulla; Gupta, Monica (2020). "Bilateral Congenital Nasolacrimal Duct Cyst: A Rare Cause of Nasal Obstruction". Cureus. 12 (6): e8742. doi:10.7759/cureus.8742...

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Tears

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tears (Alacrima) during emotional crying. Obstruction of the punctum, nasolacrimal canal, or nasolacrimal duct can cause even normal levels of the basal...

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Marsupialization

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connected to the nasal mucosa above the level of the mechanical obstruction at the nasolacrimal duct.[citation needed] When, due to an error of diagnosis, the...

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Antimetabolite

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external dacryocystorhinostomy, a procedure for the management of nasolacrimal duct obstruction, is being researched. Intraoperative antimetabolite application...

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Lacrimal bone

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sac during excessive lacrimation. The fluid then flows through the nasolacrimal duct and into the nasopharynx. This drainage results in what is commonly...

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Immunoglobulin superfamily member 3

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A mutation in this gene has been associated with bilateral nasolacrimal duct obstruction (LCDD). [provided by RefSeq, Jun 2016]. GRCh38: Ensembl release...

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Dacryoscintigraphy

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apparatus. It is used to identify obstructions, for example in the lacrimal duct, nasal cavity or nasolacrimal duct. The typical procedure involves use...

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Minuet cat

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may lead to dyspnoea. Epiphora may occur due to malformation of the nasolacrimal ducts which causes staining and secondary dermatitis. Their shallow eye...

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Imperforate lacrimal punctum

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congenital disorder of dogs involving the lack of an opening to the nasolacrimal duct (tear duct) in the conjunctiva. Dogs normally have two lacrimal puncta,...

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Eye surgery

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sac when the nasolacrimal duct does not function. Canaliculodacryocystostomy is a surgical correction for a congenitally blocked tear duct in which the...

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Nosebleed

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pressure occurs. Blood may also be forced to flow up and through the nasolacrimal duct and out of the eye, producing bloody tears. Risk factors include trauma...

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Respiratory system of the horse

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the hairs lining the inner nostril. The nasal cavity contains the nasolacrimal duct, which drains tears from the eyes and out the nose. The nasal passages...

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List of dog diseases

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congenital disorder of dogs involving the lack of an opening to the nasolacrimal duct (tear duct) in the conjunctiva. Exophthalmos is a normal condition in brachycephalic...

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Persian cat

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"cuter", they result in many health issues including ill-functioning nasolacrimal systems where tears build and flow down the face, a soft and long palate...

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Human nose

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Excessive moisture as tears collected in the lacrimal sac travel down the nasolacrimal ducts where they drain into the inferior meatus in the nasal cavity. Most...

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Rhinoplasty

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frontal sinuses; and the inferior meatus provides drainage for the nasolacrimal duct. The internal nasal valve comprises the area bounded by the upper...

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