Vitamin A can protect the tissue and structure of eyes, maintain the normal efficacy of rhodopsin, and prevent and treat night blindness and dry eye. Vitamin B 1 can protect optic nerve, maintain normal vision, prevent optic nerve degeneration and prevent eye diseases such as cataract. Foods with liver-clearing and eyesight improving effects: duck meat, duck eggs, snail, snakehead, mussel meat, mung bean, lotus root, water chestnut, white gourd, water bamboo, cucumber, loofah, medlar, medlar leaves, mint, lettuce, bitter gourd, laver, bamboo leaves, water shield and banana. You can choose to eat animal liver, kidney, milk, cream and egg yolk, eat green leafy vegetables, carrots and all kinds of fresh fruits that can be converted into vitamin A, and choose foods containing vitamin B 1. Foods rich in vitamin B 1 mainly include animal liver, kidney, lean pork, egg yolk, coarse rice, coarse flour, soybean, sesame, barley, wheat, milk, Monopterus albus, buckwheat, germ, malt, chestnuts, peas and green leafy vegetables. Night blindness, dry eye, keratitis, dry skin and other problems. Without vitamin A for a long time, corneal epithelial cells will be easily damaged due to excessive drying, and even lead to blindness. The recipe of clearing liver and improving eyesight of Lycium barbarum has existed for a long time, because it is rich in carotene, vitamin A, B 1, B2, C, calcium, iron and so on. , is an essential nutrition for healthy eyes. Three dietotherapy formulas of Lycium barbarum: 1. Lycium barbarum+rice: adding a little sugar after cooking porridge can treat blurred vision and tears. 2. Lycium barbarum+chrysanthemum: Brewing with hot water can make your eyes relax and bright. 3. Lycium barbarum+pig liver: The soup has the functions of clearing away heat, eliminating eye astringency and eliminating dark circles caused by staying up late. Cassia seed has the effects of clearing liver-fire, improving eyesight and moistening intestines, and can improve eye swelling and pain, redness and tears, and prevent visual impairment.