To protect your eyes, you can eat foods rich in vitamin A and vitamin C. Vitamin A is one of the most important nutrients for maintaining visual health. This is because vitamin A is involved in the synthesis of photoreceptors in the retina, and a deficiency of vitamin A can lead to the development of diseases such as night blindness. At the same time, vitamin A plays an important role in maintaining the health of the cornea, and a deficiency can also cause diseases such as corneal chondrosis and corneal conjunctival dryness. Vitamin A can be effectively supplemented by eating more foods such as carrots, animal liver and meat. Vitamin C is the most common antioxidant in the body, and a lack of vitamin C can cause diseases such as scurvy, and also lead to damage to the lens and macula and other structures of the eye, resulting in cataracts, macular degeneration and other diseases. Eating more fresh leafy greens and fruits, such as apples, pears, oranges, kiwi fruit, mango and so on, can be an effective way to replenish vitamin C.