eyelid (redirected from eyelid snapping)

eyelid /eye·lid/ (-lid) either of two movable folds (upper and lower) protecting the anterior surface of the eyeball.

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eye·lid or eye-lid (ld)

n.

Either of two folds of skin and muscle that can be closed over the exposed portion of the eyeball. Also called palpebra.

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eyelid

Etymology: AS, eage + hlid

one of two movable folds of protective thin skin over the eye, with eyelashes and ciliary and meibomian glands along its margin. It consists of loose connective tissue containing a thin plate of fibrous tissue lined with mucous membrane (conjunctiva). The orbicularis oculi muscle and the oculomotor nerve control the opening and closing of the eyelid. The upper and lower eyelids are separated by the palpebral fissure. Also called palpebra [pal′-pəbrə] .

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eyelid

either of two movable cutaneous folds (upper and lower) protecting the anterior surface of the eyeball. Most mammals and birds have a third eyelid that moves across the eye from the medial canthus.

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eyelid abnormality

includes entropion, ectropion, ptosis.

eyelid coloboma

a congenital, full thickness defect of varying degrees in an eyelid margin.

eyelid drooping

see ptosis.

eyelid eversion

see ectropion.

eyelid inflammation

see blepharitis.

eyelid inversion

see entropion.

premature opening eyelid

opening of eyelids in puppies and kittens before the normal age of 7 to 10 days may result in exposure keratitis because of inadequate production of tears.

eyelid snapping

winking.

eyelid speculum

an instrument used to keep the eyelids apart.

third eyelid

see membrana nictitans.

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Patient discussion about eyelid snapping.

Q. eyelids what causes your eye lids too twitch? my left eye lid has been twitching on and off for about a week what causes it and how can i get it to stop.

A. Not an answer, just another question - how long can this go on? My eyelid has been twitching, (likely lack of sleep) for almost a month now. Any treatment that I should seek?