Eyelash

From Academic Kids

Missing image
Eyelashes.jpg
A closed eye, displaying lashes
Missing image
Staring_eye.jpg
The eye now open — lashes less visible

An eyelash or simply lash is one of the hairs that grow at the edge of the eyelid. Eyelashes perform some of the same function as whiskers do on a cat or a mouse in the sense that they are sensitive to being touched, thus providing a warning that an object (such as an insect or dust mote) is near the eye (which is then closed reflexively). Eyelashes may also be fluttered, as a form of non-verbal communication. An eyelash takes about two to three months to grow. Demodex folliculorum (or the demodicid), is a small mite that lives, harmlessly, in eyelash follicles.

Beautiful, long eyelashes are considered a sign of femininity in most if not all cultures, and so their appearance is sometimes enhanced with mascara. The twentieth century saw the beginning of convincing-looking false eyelashes, popular in the 1960s.

Eyelashes are prone to a number of problems:

  • Madarosis is the loss of eyelashes
  • Blepharitis is the irritation of the lid margin (where eyelashes join the eyelid). The skin often becomes flaky.
  • Trichiasis is ingrown eyelashes
  • Eyelashes may become infested with crab louse parasites
  • An eyelash may become infected and form a stye.

Inherited eyelash problems are common in some breeds of dogs.de:Wimper simple:Eyelash

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