Foods to protect the eyes Foods rich in vitamin A Vitamin A is the main nutrient to maintain the normal metabolism of human epithelial tissue, can maintain the cornea of the eye normal, do not make the cornea dry, degeneration, and has the role of enhancing the ability to see in the dark light. If the body lacks vitamin A, there can be keratitis, dry eye disease, photophobia, tearing, and can even lead to conjunctival thickening or softening, vision loss, so that night blindness or insomnia. Therefore, more foods rich in vitamin A should be used. Vitamin A is mainly contained in animal foods such as animal liver, eggs, milk, cod liver oil, butter and other foods. In addition, carotene is a prerequisite for vitamin A, can be converted into vitamin A in the body, but its conversion rate is only 1/6, mainly contained in carrots, spinach, lettuce leaves, leeks, cabbage (bamboo leaf lettuce), pea shoots, alfalfa, pumpkin, tomatoes, amaranth, loquat, purslane, green beans and so on. Foods rich in vitamin B2 Vitamin B2 can ensure the normal metabolism of the retina and cornea, if the lack of vitamin B2 prone to keratitis, tearing, eye redness, itching, and even eye spasms and other symptoms. Vitamin B2 is our residents are prone to lack of a vitamin, therefore, in the diet should pay attention to the choice of vitamin B2-rich foods, especially adolescents should eat more animal liver, heart, kidney, egg yolks, cream and colored vegetables, especially some of the wild vegetables containing vitamin B2 is particularly rich. Foods rich in vitamin B1 and niacin If the intake of vitamin B1 and niacin is insufficient, it is easy to have nystagmus, slow vision and other symptoms. Vitamin B1 is abundant in coarse grains, and niacin is generally sufficient in food, so as long as the diet is reasonably coordinated and diversified food, you can achieve the purpose of eye protection. Foods rich in vitamin C Vitamin C is one of the components of the lens of the eye. If the body lacks vitamin C, it is easy to suffer from lens clouding cataracts, so eat more vitamin C-rich foods such as fresh vegetables and fruits. Fish rich in long-chain polyunsaturated fatty acids Fish, especially deep-sea fish rich in long-chain polyunsaturated fatty acids such as DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid) has a protective effect on the retina, if you can eat 1-2 times a week to protect your eyesight. Eat less irritating food Eat less or no food that is irritating to the eyes, such as chili peppers, onions, garlic, pepper and other spicy foods. Especially tobacco and alcohol are more damaging to eyesight and should be quit. Teenagers to protect the eyesight of nutritious food 1, kelp kelp in addition to iodine also contains 1/3 of the mannitol, sun-dried kelp surface has a thick layer of “white frost”, which is kelp in the mannitol, mannitol has a diuretic effect, can reduce intraocular pressure, used in the treatment of acute glaucoma has a good effect. Other seaweeds such as wakame also contain mannitol, can also be used as a supplemental food for the treatment of acute glaucoma. 2, goji berry goji berry is a strong medicine, the ancients had thought that it is a kind of medicine that can make people live forever, Chinese medicine believes that it can enhance the liver, kidney function, increase body fluids. It is suitable for symptoms such as deficiency labor, lumbago, knee pain, dizziness and headache. Winter tonic recommended to take is to make porridge: 20 grams of wolfberry, 60 grams of rice, an egg, a green onion. Grind goji berries into powder and pour into a skillet with 3 cups of water and fry until the amount of water is reduced by half. Soak the rice in cool water for 30 minutes, add it to the pan and start cooking the porridge with the wolfberries, remove from the heat and add the egg and green onion, stir and serve. This product nourishes yin and tonifies the kidney, nourishes the liver and eyesight, and has a good weight loss effect. 3, cilantro is a variety of vegetables, “supporting role”, but experts say that its health and medicinal value can not be ignored. Cilantro contains substances that can play a role in clearing away heat and relieving symptoms, preventing and treating hives and stopping itching. There is research data to prove that, as cilantro contains a variety of vitamins, its clear internal heat function, to improve eyesight, reduce eye disease has a very obvious role, therefore, it is recommended that people often eat some cilantro, in order to facilitate the clearing of heat and relieve the surface to improve eyesight. 4, chrysanthemum Chrysanthemum on the treatment of dry eyes, fatigue, vision oder has a very good therapeutic effect, China has known since ancient times chrysanthemum can care for the eyes. Therefore, in addition to applying the eyes, you may wish to often make some chrysanthemum tea to drink, if you can drink three or four cups of chrysanthemum tea every day, not only can make the symptoms of eye fatigue disappeared, on the restoration of eyesight is also helpful. There are many kinds of chrysanthemums, and those who do not know the way will often choose chrysanthemums with fair and big flowers. In fact, this is a misunderstanding, and the real choice should be the flowers which are small and ugly and yellowish in color. Drinking chrysanthemum tea is best not to add another tea, only after the dry chrysanthemum water or boil to drink it. It can be drunk hot in winter and iced in summer. Foods to protect the eyes of children 1: β carotene Functions: prevention of night blindness in the body β carotene can be converted into vitamin A. Therefore, for vitamin A, fruits and vegetables containing β carotene is a good source. As an important ingredient of the eye’s photoreceptors, sufficient vitamin A increases the brightness of the cornea of the eye and brightens the eyes. However, if it is insufficient, it will cause corneal epithelial cell detachment, thickening, keratinization, so that the original clear and transparent cornea has become as ambiguous as hairy glass, and may even cause night blindness, cataracts and other eye diseases. Foods rich in beta carotene: carrots, spinach, pumpkin, sweet potatoes, cauliflower, mango and so on. Lutein and zeaxanthin function: block harmful light Many people do not know about lutein and zeaxanthin. In fact, they are also very useful for the eyes. In the carotenoid family, exists in the retina of the eye only zeaxanthin and lutein, and the two exist in the amount of the same, they have a very good protective effect on the eyes, can help block out the damage to the eyes of the blue light, do not let the macula of the retina is harmed, to keep the vision sensitive and clear. In addition, research shows that if you increase the intake of zeaxanthin and lutein, you can reduce the occurrence of cataracts. Foods rich in zeaxanthin include corn, pumpkin, oranges, spinach and kale. Foods rich in lutein: spinach, cauliflower, onions, red amaranth, asparagus, greens, etc. Three: DHA Functions: Make vision clearer DHA is abundantly found in the retina and optic nerve in the eye, however, this fatty acid cannot be synthesized by our body on its own. It has been scientifically proven that proper supplementation of DHA will sharpen vision and make it clearer. In addition, DHA is an important component of neurons in the brain.