ectropion


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Related to ectropion: ptosis

ectropion

 [ek-tro´pe-on]
eversion or turning outward, as of the margin of an eyelid.
Ectropion. From Dorland's, 2000.

ec·tro·pi·on

, ectropium (ek-trō'pē-on, -pē-ŭm),
Eversion of a free edge; usually applied to the eyelid.
[G. ek, out, + tropē, a turning]

ectropion

/ec·tro·pi·on/ (ek-tro´pe-on) eversion or turning outward, as of the margin of an eyelid.

ectropion

[ektrō′pē·on]
Etymology: Gk, ek + trepein, to turn
eversion, most commonly of the eyelid, exposing the conjunctival membrane lining the eyelid and part of the eyeball. The condition may involve only the lower eyelid or both eyelids. The cause may be paralysis of the facial nerve, scarring, neoplasia, or, in an older person, atrophy of the eyelid tissues. Compare entropion.
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Ectropion

ectropion

Ophthalmology The outward rolling of an anatomic margin, usually understood to be that of the eyelid

ec·tro·pi·on

, ectropium (ek-trō'pē-on, -pē-um)
A rolling outward of the margin of a part, e.g., of an eyelid.
[G. ek, out, + tropē, a turning]

ectropion

An out-turning of an eyelid, usually the lower, so that the wet, inner, conjunctival surface is exposed to view. Ectropion is commonest in the elderly, in whom weak and lax eyelid muscles allow the lower lid to fall away from the eye. It can also be caused by paralysis of the flat muscle surrounding the eye, as in BELL'S PALSY or by scarring and shortening (contracture) of the lid skin (cicatricial ectropion).

Ectropion

A complication of blepharoplasty, in which the lower lid is pulled downward, exposing the surface below.
Mentioned in: Blepharoplasty

ectropion

Outward turning of the eyelid margin. The most common cause is a loss of tonus of the pretarsal orbicularis muscle combined with laxity of the medial and lateral canthal tendons, which occurs in old people and affects only the lower eyelid (involutional ectropion). Tears collect in the lacrimal lake and overflow onto the skin of the face. Other causes of ectropion are scarring, burns, trauma (called cicatricial ectropion), spasm of the orbicularis muscle, which may affect either the upper or lower eyelid, or paralysis of the orbicularis muscle in which only the lower eyelid is affected. Ectropion may lead to exposure keratitis as the lower part of the cornea remains exposed. Management includes instilling an ocular lubricant and patching the eye during sleep as a temporary measure, but, if severe, the treatment is surgical.
cicatricial ectropion; involutional ectropion See ectropion.
congenital ectropion A rare congenital eversion of the eyelid (most often the lower). It may be due to a deficiency of the anterior eyelid lamina. It is usually associated with other disorders, such as blepharophimosis syndrome or Down's syndrome.
ectropion uveae A turning of a portion of the posterior pigment epithelium of the iris growing or being drawn around the pupillary margin onto the anterior iris surface. It may be acquired (e.g. following iris neovascularization, neovascular glaucoma, iris melanoma) or congenital (e.g. neurofibromatosis).

ec·tro·pi·on

, ectropium (ek-trō'pē-on)
A rolling outward of the margin of a part, e.g., of an eyelid.
[G. ek, out, + tropē, a turning]

ectropion (ektrō´pēon),

n an eversion, or rolling outward, of the eyelid margin.

ectropion

eversion or turning outward, as of the margin of an eyelid.

cicatricial ectropion
caused by contraction of scar tissue following injury or surgery to the eyelid.
congenital ectropion
most commonly seen in some breeds of dogs, such as St. Bernard, Bloodhound and spaniels where it may be considered normal. Called also heritable ectropion.
heritable ectropion
see congenital ectropion (above).
intermittent acquired ectropion, physiological ectropion
may occur in some dogs intermittently for unknown reasons.
physiological ectropion
see intermittent acquired ectropion (above).
References in periodicals archive ?
Eyelid anomalies, both static (position) and dynamic (blink), may result in reflex epiphora or pump failure (punctal ectropion or facial palsy).
Exposure from lagophthalmos, lid defects or ectropion causes drying out and sloughing of the corneal epithelium.
Medial ectropion is associated with retraction of the inferior punctum away from the surface of the globe, which results in disruption of the lacrimal drainage system, epiphora, keratitis, and scleral show.
A longitudinal scar will produce a longitudinal force vector than can contribute to ectropion of the lower eyelid.
Bleeding patterns Intermenstrual bleeding * Benign growths (cervical/endometrial polyps, ectropion, fibroids) * Cancer (uterine, cervical, vulvar, vaginal) * Drugs (oral contraceptives, hormone replacement) * Infection (ulcerations, vaginitis, cervicitis, endometritis) * Intrauterine device (IUD) * Pregnancy * Trauma Menorrhagia * Benign structural lesions (fibroids, endometrial polyps) * Cancer (endometrial carcinoma, uterine sarcoma) * Coagulopathies (von Willebrand disease, thrombocytopenia, leukemia, anticoagulants) * Endometrial hyperplasia * Other (hypothyroidism, hyperestrogenemic state (ie, renal/liver disease), IUD, pregnancy) Table 3.
Instead of [TEXT NOT REPRODUCIBLE IN ASCII] read [TEXT NOT REPRODUCIBLE IN ASCII] "dimness of the eye, ectropion," derived from [square root of (term)]khy and formed by epenthesis; see Sokoloff 2002: 554.
When they turn inwards it is called entropion, and when the eyelids turn outwards it is called ectropion.
A cervical ectropion can cause bleeding between periods and occurs when delicate cells lining the cervical canal also cover an area on the outer cervix.
In some women the pill causes cervical ectropion, a coiling outward of the vaginal end of the cervix that exposes more surface area to chlamydial infection.
After five minutes, the cotton bud is removed and the presence of fluorescein (positive) on the bud indicates a patent lacrimal drainage system and the epiphora may be the result of lacrimal hypersecretion, caused by conditions such as ocular allergy, dry eye, blepharitis, trichiasis, distichiasis, entropion, ectropion, foreign bodies, concretions, corneal disease or anterior uveitis.
Secondary bacterial infection often occurs which compounds the scarring and leads to cicatricial entropion or ectropion.
A rare case of chondroid syringoma arising from the lower eyelid with ectropion.