Retinal detachments occur most frequently in people over the age of 40, although they may occur at any age. If left untreated, a detached retina can cause total blindness. However, if the center of the retina (the macula) detaches, there is usually some permanent vision loss. If caught and treated early there could be little or no vision loss after the eye heals from being repaired. A curtain-like shadow over your visual field.Gradually reduced side (peripheral) vision.The sudden appearance of many floaters - tiny specks that seem to drift through your field of vision.But warning signs almost always appear before it occurs or has advanced. The retina cannot work if it is detached from its blood supply. Liquid that passes through the tear and settles under the retina causes a separation of the retina from the back wall of the eye. Retinal tears and detachment occur when the vitreous, a clear jelly-like substance that fills the eye, pulls from the retina and causes the retina to tear.
It is usually due to a tear in the retina which can happen because of an inherent weakness, trauma or the vitreous gel pulling a hole in the retina. A retinal detachment occurs when the retina (a nerve layer that lines the back wall of the eye) separates from the back of the eye.
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