Protect Your Eye Health. Vision problems tend to increase as one ages, but there are things you can do to help protect your eyesight: have a medical eye exam by age 40, when early signs of disease may begin without any symptoms; find out what your family history is for inherited eye diseases; eat a healthy diet that’s low in fat and high in fruits, vegetables, fish, and whole grains; don’t smoke, as it increases the risk of eye diseases, such as cataracts and age-related macular degeneration; and remember to wear a hat and sunglasses to protect your eyes from UV damage while outside. American Academy of Opthalmology, May 2018