Age-related macular degeneration is a leading cause of poor vision in people over age 60. It is rarely found in younger people.
Central vision is the vision in the center, or straight ahead.
For most people, central vision provides the sharpest and most useful vision. When the macula of the eye deteriorates or is damaged, central vision is affected. Things may become distorted, blotted out, or obscured in a haze. Peripheral vision is side vision and does not depend on the macula. The retina is the light-sensitive membrane of nerve tissue lining the back of the eye.