Preservision Areds Formula Tablets are a dietary supplement that contains a specific combination of vitamins and minerals recommended by the National Eye Institute (NEI) to help reduce the risk of progression of moderate-to-advanced age-related macular degeneration (AMD). AMD is a leading cause of blindness in adults over the age of 50. Preservision Areds Formula Tablets contain high levels of vitamin C, vitamin E, beta-carotene, zinc, and copper. These nutrients work together to protect the macula, the central part of the retina responsible for sharp central vision.