WebMD
If you've got a certain gene mutation, you may be less likely to develop the dry form of age-related macular degeneration, new research shows. Age-related macular degeneration (AMD), the leading cause of vision loss in the U.S., typically strikes after age 55. It affects the macula, a spot at the back of the retina that's needed for reading, driving, watching TV, and other tasks that involve central vision.