The retina is the nerve layer that lines the back of the eye. Its blood supply and nourishment come from behind it. When the
retina detaches from the back of the eye, it bulges into the cavity of the eye and therefore is separated from its blood
supply. The vision is lost in that area, and if left untreated the vision is permanently damaged. Retinal detachments are
frequently associated with holes or tears in the retina. They may be caused by various conditions including trauma. Most
often there are no symptoms except for a blurred or obscured area in the field of vision. This clouded area does not change
and in many cases progresses, becoming worse. By comparison, vitreous floaters will cause areas of decreased vision which
move about and will frequently come and go. The loss in a retinal detachment can be permanent, and must be treated. Some
people may notice flashes of light or a sudden increase in vitreous floaters prior to having a retinal detachment. It is
always necessary to treat a retinal detachment surgically as soon as possible.
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