The National Institutes of Health is launching a new study to see if a combination of vitamins, minerals, and fish oil can slow the progression of vision loss from age-related macular degeneration, the leading cause of vision loss in the United States for individuals older than 60 years. This trial, called the Age-Related Eye Disease Study 2 (AREDS2), will build upon results from the earlier Age-Related Eye Disease Study (AREDS) that 5 years ago found that high-dose antioxidant vitamins and minerals (vitamins C and E, beta-carotene, zinc, and copper) reduced the risk of progression to advanced age-related macular degeneration by 25% and the risk of moderate vision loss by 19% (http://www.nei.nih.gov/amd/).
Hampton T. Macular Degeneration. JAMA. 2006;296(20):2429. doi:10.1001/jama.296.20.2429-c