To improve your eyesight, you need to make sure that your body receives enough of these nutrients:

Vitamin A: in tomatoes, papaya, carrots and fortified milk.
Vitamin C: in oranges, strawberries, peppers and broccoli.
Vitamin E: in oils, nuts and seeds.
Zeaxanthin and Lutein: in leafy green vegetables, mangoes, kiwi, honeydew, peas, broccoli, yellow squash, corn, red grapes and oranges.