Tears or holes in the retina. These may lead to
retinal detachment by allowing fluid from the middle of the eye (vitreous gel) to collect
under the retina. A common cause of retinal tears is posterior vitreous detachment (PVD). An eye or head injury or other eye disorders,
such as lattice degeneration, a condition in which the retina becomes very
thin, may also cause tears or holes in the retina.
Traction on the retina. Traction pulls the retina
away from the layers beneath it. The most common cause of this problem is
proliferative diabetic retinopathy, a condition that
leads to the growth of scar tissue that can pull on the retina.
Fluid buildup under the retina. Fluid buildup
causes the layers of the retina to separate, resulting in retinal detachment.
Fluid buildup may be caused by
inflammation or disease in the retina, in the layer just
beneath the retina (choroid), in blood vessels, or in tissues in the eye.