Preserve Mac Forte is a leading eye vitamin supplement that is sold by a US company called R.N.S. It has been selling online since it was introduced to the marketplace in 2006 and the company website boasts that over 1 million capsules have been sold to their thousands of happy customers worldwide. When comparing the ingredients in Preserve Mac Forte to other ocular health supplements it is noticeable that this eye vitamin contains essential antioxidants that the National Eye Institute found to be helpful in their AREDS Study to slow vision loss from dry macular degeneration. It has 15,000 IU of Vitamin A, Vitamin C, Vitamin E, Zinc, Copper, and many more powerful ingredients that support eye health as well as full body health. It seems to be one of the best eye vitamins on the market today based on my research.