Muscular degeneration is an age-related disease that affects the central vision.
It is a common cause of vision loss in people over the age of 60. People rarely go blind because of the disease because it only affects the center of their vision. Macular degeneration can make it difficult to read, drive and live a normal daily life that requires use of the central vision. The macula is in the center of the retina, which is a light-sensitive layer of tissue at the back of the eye. When you use your central vision, light is focused onto your macula.