Just like the rest of your body, your eyes need a healthy supply of nutrients to function correctly. Eat a well-balanced diet full of vegetables and fruits that are high in Vitamins A, B and C. An omega-3 supplement may also keep your eyes lubricated and help protect against macular degeneration. The muscles that move your eyes are just as important as the other muscles in your body. Like your arms and legs, they need exercise to stay strong and flexible. To exercise your eyes, roll them in a circular motion ten times daily to get the blood flowing, and practice looking at the sides for a few minutes at a time.