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  2. Chalazion - Wikipedia

    en.wikipedia.org/wiki/Chalazion

    A chalazion (/ k ə ˈ l eɪ z i ə n /; plural chalazia or chalazions) or meibomian cyst [4] is not a cyst but a granuloma [5] in the eyelid that results from a blocked meibomian gland. [6] [7] It typically occurs in the middle of the eyelid, red, and not painful. [2] They tend to come on gradually over a few weeks. [2]

  3. Meibomian gland - Wikipedia

    en.wikipedia.org/wiki/Meibomian_gland

    Meibomian glands in the lower eyelid imaged under amber light to show vasculature support and the gland structure. Dysfunctional meibomian glands often cause dry eyes, one of the more common eye conditions. They may also contribute to blepharitis.

  4. Tarsus (eyelids) - Wikipedia

    en.wikipedia.org/wiki/Tarsus_(eyelids)

    Along the inner margin of the tarsus are modified sebaceous glands known as tarsal glands (or meibomian glands), aligned vertically within the tarsi: 30 to 40 glands in the upper lid, and 20 to 30 in the lower lid, which secrete a lipid-rich product which helps keep the lacrimal secretions or tears from evaporating too quickly, thus keeping the ...

  5. Eye doctor reveals alarming risks of vaping - AOL

    www.aol.com/eye-doctor-reveals-alarming-risks...

    Vaping disrupts this delicate system by harming the glands that produce a key component of tears: the lipid layer. “These glands, called meibomian glands, create an oily layer that keeps tears ...

  6. Meibomian gland dysfunction - Wikipedia

    en.wikipedia.org/wiki/Meibomian_gland_dysfunction

    Meibomian glands in the lower eyelid imaged under amber light to show vasculature support and the gland structure. Meibomian gland dysfunction (MGD, also meibomitis or meibomianitis) is a chronic disease of the meibomian glands, which is commonly characterized by obstruction of the end of the duct that delivers the secretion produced by the glands (called meibum) to the eye surface, which ...

  7. Sebaceous carcinoma - Wikipedia

    en.wikipedia.org/wiki/Sebaceous_carcinoma

    The periocular region, which includes the meibomian, Zeis, and sebaceous glands of the caruncle and eyelid, is the most common site accounting for up to 75% of SGc. [6] Meibomian glands are a type of sebaceous gland that lines the upper and lower eyelids and do not contain a follicle. The glands of Zeis contain the individual eyelash.

  8. Dermatochalasis - Wikipedia

    en.wikipedia.org/wiki/Dermatochalasis

    People with dermatochalasis often also have blepharitis, a condition caused by the plugging of glands in the eye that produce lubricating fluid (meibomian glands). [2] Dermatochalasis can be severe enough that it pushes the eyelashes into the eye, causing entropion. [2] Weakness in the orbital septum may cause the herniation of the orbital fat ...

  9. Dry eye syndrome - Wikipedia

    en.wikipedia.org/wiki/Dry_eye_syndrome

    The meibomian glands are two sets of oil glands that line the upper and lower eyelids and secrete the oily outer layer of the tear film—the lipid layer. These glands often become clogged due to inflammation caused by blepharitis and/or rosacea, preventing an even distribution of oil. The result is an unstable lipid layer that leads to ...