In addition, the conditioning of daily diet is very important. Vitamin A in animal food and carotene in plant food are "panacea" to protect eyes and maintain normal vision. Without them, your eyes will dim and your vision will decline. Because vitamin A, carrots and vitamins are directly involved in the formation of rhodopsin, which is a chemical substance that absorbs light from the retina. If the nutritional status of vitamin A in human body is good, rhodopsin will be synthesized more, and the time to restore vision in dark light will be shorter. On the other hand, poor nutritional status of vitamin A and insufficient vitamin A content in blood will lead to rhodopsin synthesis disorder, and night blindness will occur when people can't see clearly at night. Once vitamin A or carrots are added, this problem will be alleviated.
In addition, vitamin A and carrots are also the main nutrients to maintain the normal metabolism of human epithelial tissues. Once vitamin A is deficient, dry eye and keratomalacia will appear. This gives people a feeling of wrinkled eyelids, dull eyes and lack of water. Vitamin B2 in food is also an important nutrient to protect eyes. Once missing, there will be dull eyes, dryness, listlessness, tears in the wind, decreased vision and other phenomena, giving people a feeling of fatigue and listlessness.
According to the theory of traditional Chinese medicine, "the liver begins to improve eyesight." Therefore, the health care measures for improving eyesight are mainly nourishing the yin of liver and kidney, nourishing the blood of heart and liver, calming the liver and suppressing yang, and purging liver fire. There are many ways to protect our eyes and improve our eyesight by eating. Because vitamin A mainly exists in the liver of animals, it is said that "eating the liver is good for the eyes". The content of carrots in yellow-green vegetables such as alfalfa, pea seedlings, leeks and carrots is high, and eating more fresh vegetables also has the effect of protecting eyes. Chrysanthemum has the effects of nourishing liver, clearing fire and improving eyesight, and is a favorite tea product. Both orange fruits and vegetables contain vitamin A, especially carrots, red peppers, sand fruits, orange and yellow tomatoes, and citrus fruits such as oranges, lemons and grapefruit. In addition to vitamin A, they are also rich in vitamin C needed for vision. Citrus fruits are particularly beneficial to the elderly, who have started or will face the risk of cataract. This very dangerous eye disease has a high blindness rate. Eating more fruits rich in vitamins A and C can effectively prevent this disease.
People with myopia should eat more fish, grains, citrus fruits and red fruits to avoid vision loss. But pay attention to those foods that aggravate myopia, especially sugar, meat and full-fat cheese.
People with long-term vision should eat more garlic, onions, dairy products (skim milk), dried fruits and animal livers on your menu. Avoid cooking vegetables with meat or animal oil.
Cataract and presbyopia patients had better drink more water, at least one and a half liters of water a day; Secondly, it is good to eat more whole grains, green vegetables and lettuce, carrots and tomatoes, and it is also good to eat more fruits, especially citrus fruits, grapes, lemons, bananas and apricots, and often eat foods containing calcium. Avoid drinking, smoking and eating animal fat and sugar. Glaucoma patients have high intraocular pressure. In order to reduce intraocular pressure, garlic and onion should be included in the menu. In addition, eat less greasy things, don't drink tea, coffee and wine, and give up smoking completely.
If you eat fruit with yogurt, milk, etc. It can not only increase vitamin A necessary for dark vision, prevent eye redness and vitamin B2 from being afraid of light, help to relax calcium in eye muscles, but also provide a small amount of oil to fully absorb carotene in fruits and vegetables.
Therefore, yogurt+fruit is the best snack for computer families and a healthy snack.