Retinal Detachment

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retinal detachment

[‚ret·ən·əl di′tach·mənt]
An eye disorder characterized by the separation of the sensory layers of the retina from their supporting foundations.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Retinal Detachment


a disease of the eye in which the retina separates from the outwardly adjacent pigment epithelium. Retinal detachment may be primary, that is, spontaneous, or secondary.

With primary retinal detachment, the retina is ruptured or abrupted from its site of attachment to the pigment epithelium.

It is detached by the vitreous humor, which seeps under it through the rupture. The opening usually originates where the retina degenerates, and thus detachment is most often observed in older persons or in those with severe myopia. Retinal detachment may also result from eye trauma. Patients complain of a dark shadow in front of the eye that appears to travel from a specific side of the visual field, that is, from above, from below, from within, or from without. Another common complaint is photopsia—the illusion of sparks and luminous lines before the eyes. Vision is drastically reduced, and treatment must involve surgery.

The etiology of secondary retinal detachment is associated with other eye diseases, for example, inflammatory and oncological diseases and affections of the vessels of the fundus of the eye. Retinal rupture usually does not occur in secondary detachment. The condition is treated by curing the underlying cause.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
But I've been advised not to take contact while there is a risk of this detached retina.'
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Harshad Shah, an ophthalmologist, after another physician diagnosed a detached retina in his right eye.
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* a bleeding or detached retina; eye surgery or laser treatment
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He had been legally blind since 1979 after getting a detached retina in his left eye and a cataract in his fight.
On the second day of the trial she told the court of her disability - a detached retina in one eye and partial blindness in the other.
LOS ANGELES ndash Manny Pacquiao's head trainer has allayed fears that the boxing icon had suffered a detached retina on his left eye during his world title fight against Adrien Broner at the MGM Grand last Saturday.
An operation two years later failed to fix his detached retina and he was left with only 10 percent vision.