The sensitive membrane that lines the inner surface of the back of the eyeball is known as the retina. It is made up of multiple layers, one of which comprises photoreceptors, which are specialized cells. The lens concentrates an image on the retina when light travels through the eyes. When the retina lifts away from the back of the eye, it is known as a detached retina. When the retina is detached, it stops working, causing vision to become fuzzy. Detachment of the retina is a major issue. One should see an ophthalmologist soon away, or may risk losing vision in that eye. Although there is no pain associated with retinal detachment, there are frequent symptoms prior to the detachment.