PreserVision 3 Capsules supports eye vitality and contains multivitamins and antioxidants that help in the proper functioning of the eye and the body. DHA (contained in omega-3s) helps maintain a normal visual function. The beneficial effect is obtained by the daily consumption of 250mg of DHA. Vitamins C, E, and zinc help protect cells against oxidative stress. Zinc contributes to the maintenance of a normal visual function. Lutein is one of the constituents of the macular pigment (retina).