Retinal Detachment

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retinal detachment

[‚ret·ən·əl di′tach·mənt]
(medicine)
An eye disorder characterized by the separation of the sensory layers of the retina from their supporting foundations.

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.

L. A. KATSNEL’SON

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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The court found that the patient knew about his injury, the second detached retina, which resulted in his loss of sight at least 17 months before he brought suit.
Having a detached retina in one eye dramatically raises the risk of a detached retina in the other eye.
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.
Frequently, a retinal surgeon will be required to shoot upwards of a thousand laser shots into the retina in order to reattach a detached retina during a given procedure.
And Leonard himself famously came back from a threeyear lay-off, with a detached retina, to beat Marvin Hagler in 1987.
Returning for the appointment he was examined promptly by a specialist who said that he had a detached retina.
A 26-year-old man from Qingdao in China has experienced a detached retina after spending hours chatting with his girlfriend throughout the day until evening over the instant messaging app We Chat.
A detached retina occurs when it peels away from the tissue at the back of the eye.
His mother Emma Wilson, 25, is accused of murdering her son, who had also lost sight from a detached retina and had multiple fractures and bruising around his body, the jury was told.