Vitamin A

Vitamin A is important for eyesight because it keeps the cornea, the outer coating of your eye, clean. This vitamin is also found in rhodopsin, a protein in your eyes that helps you to see in dim light. Vitamin A deficiency is uncommon in affluent nations, but if left untreated, it can result in a dangerous illness known as xerophthalmia. Xerophthalmia is a chronic eye condition that causes night blindness. If you don't get enough vitamin A, your tear ducts and eyes will dry out. Your cornea eventually softens, resulting in permanent blindness.

Vitamin A may also protect against other eye diseases. Some research suggests that diets high in vitamin A may be linked to a lower incidence of cataracts and AMD. Vitamin A-rich meals are preferred over supplements for overall eye health. Sweet potatoes, lush green vegetables, pumpkins, and bell peppers are also good sources.