How diet may affect age-related macular degeneration : Near the center of the retina, at the back of the eye, is a small area known as the macula. The macula is needed for sharp, central vision, such as for seeing straight ahead to drive, read, and recognize faces. More than 2 million Americans have age-related macular degeneration (AMD). It’s a leading cause of vision loss among people aged 50 and older.
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