Nutrients for vision, from food, due to the widespread use of video, work and life stress, a variety of factors can easily cause vision fatigue, so eliminate vision fatigue, pay attention to dietary nutrition is very important. 1, supplemental vitamin A: 1 egg, 2 cups of milk, 2 kinds of fruit, 1 pound of vegetables, twice a week pork liver. The best sources of vitamin A are various animal livers, milk, eggs, and red-yellow and dark green foods rich in carotene, such as carrots and broccoli. 2, supplement vitamin B1, B2 and vitamin C, as well as potassium, magnesium and other mineral elements. Such as cereal bark and wheat, corn and other coarse grains, meat, fish, eggs, peppers, spinach, cauliflower, fresh dates, kiwi, oranges, strawberries, etc. In vegetables, fruits, nuts and coarse grains are rich in potassium and magnesium. Timely supplementation of these foods can reduce corneal dryness and protect the eyes.