When your eyes are bad, you can eat foods rich in vitamins, proteins and anthocyanins to replenish your nutrition, and you need medication and surgery to restore your eyesight. 1. Foods rich in vitamin A, such as carrots, milk, animal liver, etc., and foods rich in vitamin C, such as green vegetables, beans, apples, lemons, etc., can help to nourish the retinal cells, improve the eye’s ability to adapt to the dark environment, and can also properly prevent dry eye disease. 2. Protein-rich foods such as black beans, eggs and milk have high nutritional value and are effective in strengthening eye muscles and improving eye adjustment, which can relieve visual fatigue. 3. Purple potatoes, purple kale and other anthocyanin-rich foods have a good antioxidant effect and are involved in the function of photoreceptor cells, which can effectively relieve retinopathy. When the eyes are bad, it is recommended to go to the hospital for examination and receive regular treatment, dietary improvement effect is weak, in order to truly correct vision, or need to receive medication, surgical treatment.