If you can't see it, you can't shoot it. Though the eyes and brain make up only about two percent of your total body weight, they eat up 25 percent of your nutrient load. Eyes are thirsty sponges of whatever gets near them, so expect to triple the risk of cataracts and macular degeneration if you smoke, and beware of too much yakking on mobile phones. Cell phone radiation has been shown in scientific studies to damage the cornea, lens, and retina of the eyes of mammals.
The easy way to maximize eye health is to eat right, though the National Eye Institute's Age-related Eye Disease Study (AREDS) has shown that taking a specific formulation of antioxidants and zinc every day can help reduce the risk of macular degeneration by at least 25 percent. Here it is, straight from the Feds-