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Nasolacrimal duct obstruction is the obstruction of the nasolacrimal ducts (better known as the tear ducts) and may be either congenital or acquired. Obstruction of the nasolacrimal ducts leads to the excess overflow of tears called epiphora .
Persons with dry eye conditions can be fitted with punctal plugs that seal the ducts to limit the amount of fluid drainage and retain moisture. During an ear infection, excess mucus may drain through the nasolacrimal duct in the opposite way tears drain. [citation needed] In humans, the tear ducts in males tend to be larger than the ones in ...
Tears are produced by the lacrimal gland, situated just outside the eye. Blinking the eyelids distributes the tears to keep the eyes moist, clean and lubricated. Excess tears are drained via the punctum through the tiny channels called canaliculi located on the inner side of the eyes into the tear sac, from there to the tear duct, the nose and finally down the throat.
Canaliculodacryocystostomy is a surgical correction for a congenitally blocked tear duct in which the closed segment is excised and the open end is joined to the lacrimal sac. [8] [10] Canaliculotomy involves slitting of the lacrimal punctum and canaliculus for the relief of epiphora [8] A dacryoadenectomy is the surgical removal of a lacrimal ...
Tear Duct Surgery: When tear ducts are blocked or damaged, it can cause chronic tearing or infections. Tear duct surgery, such as dacryocystorhinostomy (DCR), aims to create a new drainage pathway for tears to alleviate these issues. Orbital Surgery: Orbital surgery deals with problems within the eye socket, or orbit. This can include the ...
Canaliculodacryocystostomy is a surgical correction for a congenitally blocked tear duct in which the closed segment is excised and the open end is joined to the lacrimal sac. [33] [36] Canaliculotomy involves slitting of the lacrimal punctum and canaliculus for the relief of epiphora [33] A dacryoadenectomy is the surgical removal of a ...
Dacryocystitis is an infection of the lacrimal sac, secondary to obstruction of the nasolacrimal duct at the junction of the lacrimal sac. [1] The term derives from Greek dákryon 'tear' cysta 'sac' and -itis 'inflammation'. [2] It causes pain, redness, and swelling over the inner aspect of the lower eyelid and epiphora.
The purpose of the nasolacrimal ducts is to drain tears from the eye area of the lacrimal sac and eventually through the nasal cavity. Dacryocystocele is caused by blockage on the nasolacrimal duct, as a result when mucoid fluid collects in the intermediate patent section it forms a cystic structure. The cyst is formed by the eye and nose ...