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  2. Nasolacrimal duct obstruction - Wikipedia

    en.wikipedia.org/wiki/Nasolacrimal_duct_obstruction

    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 .

  3. Nasolacrimal duct - Wikipedia

    en.wikipedia.org/wiki/Nasolacrimal_duct

    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 ...

  4. Dacryocystitis - Wikipedia

    en.wikipedia.org/wiki/Dacryocystitis

    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.

  5. Oculoplasty - Wikipedia

    en.wikipedia.org/wiki/Oculoplasty

    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 ...

  6. Lacrimal gland - Wikipedia

    en.wikipedia.org/wiki/Lacrimal_gland

    The lacrimal gland is a compound tubuloacinar gland, it is made up of many lobules separated by connective tissue, each lobule contains many acini.The acini composed of large serous cells which, produce a watery serous secretion, serous cells are filled with lightly stained secretory granules and surrounded by well-developed myoepithelial cells and a sparse, vascular stroma.

  7. Lacrimal sac - Wikipedia

    en.wikipedia.org/wiki/Lacrimal_sac

    The lacrimal sac or lachrymal sac [1] is the upper dilated end of the nasolacrimal duct, [2] and is lodged in a deep groove formed by the lacrimal bone and frontal process of the maxilla. It connects the lacrimal canaliculi , which drain tears from the eye's surface, and the nasolacrimal duct , which conveys this fluid into the nasal cavity. [ 3 ]

  8. Dacryocystorhinostomy - Wikipedia

    en.wikipedia.org/wiki/Dacryocystorhinostomy

    Dacryocystorhinostomy (DCR) is a surgical procedure to restore the flow of tears into the nose from the lacrimal sac when the nasolacrimal duct does not function. [ 1 ] Process

  9. Dry eye syndrome - Wikipedia

    en.wikipedia.org/wiki/Dry_eye_syndrome

    In each eye, there are two puncta [59] – little openings that drain tears into the tear ducts. [4] There are methods to partially or completely close the tear ducts. [16] This blocks the flow of tears into the nose, and thus more tears are available to the eyes. [13] Drainage into either one or both puncta in each eye can be blocked.