eyelid

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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 periodicals archive ?
Through doing this, one hopes to tighten the lower eyelid retractors
Bill had a nose reduction job (EUR6,788), brow lift (EUR9,050), lower eyelid lift (EUR5,280) and liposuction on his chin and love handles (EUR6,034), botox treatment around his eyes (EUR453), restylane to a fill in a forehead scar (EUR453).
Whether as a result of Mohs surgery, for cancer of the eye, accidents or prior cosmetic surgery, we see many patients whose eyes can't close completely or are asymmetrical, or whose lower eyelids droop.
Ray had rhinoplasty (pounds 4,500), a brow lift and an upper and lower eyelid lift (pounds 4,500), liposuction on his chin (pounds 2,000), acne and scar excision (pounds 10,000), hair transplant and hair restoration (pounds 3,000), a sonopeel (pounds 1,000), sonofacial (pounds 2,000), oxygen facial (pounds 1,000) and a smoothbeam laser (pounds 2,000), acne scars and nasal labial folds, muscle relaxer to forehead (pounds 2,000), dental work (pounds 10,000).
The facial anomalies, which are usually bilateral and symmetric, consist of down-slanting palpebral fissures, colobomata of the lower eyelid, scanty lower eyelashes, malar hypoplasia, and micro- or retrognathia.
Never apply makeup over the oil glands of the upper or lower eyelid as these oil glands secrete oil that protects the surface of the eye.
Procedures to brighten aging eyes and rehabilitate lower eyelid bags and crepey skin will soar in 2015.
She had painful procedures including an upper and lower eyelid lift, nose job, chin implant, bigger boobs, liposuction, fat injections in her cheeks, Lasik eye surgery, a tattoo removed, dental work and deep facial exfoliation.
To ensure that the drop stays in your eye, make a ``pocket'' by gently pulling your lower eyelid between your thumb and index finger.
Nominee Laura Linney's skin glows, but her slightly heavy brow and extra lower eyelid extra skin could be addressed with a brow and eyelid lift.
A lower blepharoplasty procedure removes some of the excess fat and skin of the lower eyelid, and results in energetic looking eyes.
Now the lower eyelid on my left eye has started twitching.

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