eyelid


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Related to eyelid: droopy eyelid

eyelid

 [i´lid]
either of two movable folds (upper and lower) protecting the anterior surface of the eyeball.

eye·lid

(ī'lid), [TA]
One of two movable folds that cover the front of the eyeball when closed; formed of a fibrous core (tarsal plate) and the palpebral portions of the orbicularis oculi muscle covered with skin on the superficial, anterior surface and lined with conjunctiva on the deep, posterior surface; rapid contraction of the contained muscle fibers produces blinking; each has fixed (orbital) and free margins, the latter separated centrally by the palpebral fissure, united at the lateral and medial palpebral commissures, and bearing eyelashes, openings of tarsal and ciliary glands and (medially) the lacrimal puncta.
Synonym(s): palpebra [TA], blepharon, lid

eyelid

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

eyelid

(ī′lĭd′)
n.
Either of two folds of skin and muscle that can be closed over the exposed portion of the eyeball.

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] .

eye·lid

(ī'lid) [TA]
One of the two movable folds covering the front of the eyeball when closed; formed of a fibrous core (tarsal plate) and the palpebral portions of the orbicularis oculi muscle covered with skin on the superficial, anterior surface and lined with conjunctiva on the deep, posterior surface; rapid contraction of the contained muscle fibers produces blinking; they each have fixed (orbital) and free margins, the latter separated centrally by the palpebral fissure, united at the lateral and medial palpebral commissures, and bearing eyelashes, the openings of tarsal and ciliary glands and (medially) the lacrimal puncta.
Synonym(s): palpebra [TA] , blepharon, lid.

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.

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
eyelid inflammation
eyelid inversion
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.

Patient discussion about eyelid

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?

More discussions about eyelid
References in classic literature ?
She seemed to be holding them up in propitiation for her passionate desire to know and to think, which in the unfriendly mediums of Tipton and Freshitt had issued in crying and red eyelids.
It was the safe place for the battle that revived itself under Martin's eyelids.
Agnes saw that look; saw the eyelids of the living woman open slowly like the eyelids of the dead; saw her rise, as if in obedience to some silent command--and saw no more.
The East End of London, I read, or some one says; and first of all, under my eyelids, leap the visions of the shining pubs, and in my ears echo the calls for "two of bitter" and "three of Scotch.
The man's purplish red face, his heavy eyelids, the nervous twitchings, all spoke of his addiction to drink.
Anna looked at her with drooping eyelids, and smiled, pressing her had.
In bed, she projected against her closed eyelids the few rich scenes of her mother that her child-memory retained.
But on this night Saxon did not win to sleep quickly; the little creeping mother came and went; and in the intervals the face of Billy, with the cloud-drifted, sullen, handsome eyes, burned against her eyelids.
What was Oliver's horror and alarm as he stood a few paces off, looking on with his eyelids as wide open as they would possibly go, to see the Dodger plunge his hand into the old gentleman's pocket, and draw from thence a handkerchief
Her lips and eyelids quivered; she opened her eyes full on his for an instant, like a lovely wild animal timid and struggling under caresses, and then turned sharp round toward home again.
Kathryn Najafi-Tagol at a major Ophthalmology meeting shows that those problems can be successfully managed with Avenova eyelid cleanser from NovaBay Pharmaceuticals
The device, Eyepeace (pictured right), is said to be the first personal eyelid massager designed to unblock the meibomian gland, and prevent and treat MGD.