Health
There are a number of diseases or disorders involving the eyelashes:
- Madarosis is the loss of eyelashes.
- Blepharitis is the irritation of the lid margin, where eyelashes join the eyelid. The eyelids are red and itching, the skin often becomes flaky, and the eyelashes may fall out.
- Distichiasis is the abnormal growth of lashes from certain areas of the eyelid.
- Trichiasis refers to ingrown eyelashes.
- Eyelashes may become infested with parasitic crab louse.
- An external hordeolum, or stye, is a purulent inflammation of infected eyelash follicles and surrounding sebaceous (Zeis) and apocrine (Moll) glands of the lid margin.
- Trichotillomania is a disorder that urges the sufferer to pull out scalp hair, eyelashes, etc.
- Demodex folliculorum (or the demodicid) is a small mite that lives harmlessly in eyelash and other hair follicles, and about 98% of people have these mites living on them. Occasionally they may cause blepharitis.
Eyelash and eyebrow transplant surgeries may be help to reconstruct or thicken lashes or eyebrow hair.
Read more about this topic: Eyelash
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—Mark Twain [Samuel Langhorne Clemens] (1835–1910)