Vitamin A is closely related to normal vision. If vitamin A is insufficient, the regeneration of rhodopsin is slow and incomplete, and the dark adaptation time is prolonged, which can cause night blindness in severe cases. If vitamin A in the diet continues to be deficient or insufficient, dry eye will appear, and the condition will further develop into corneal softening and corneal ulcer, as well as corneal folds and Pitt spots. The best food sources of vitamin A are various animal livers, cod liver oil, fish eggs and poultry eggs. Vitamin A contained in carrots, spinach, amaranth, alfalfa, red sweet potatoes, pumpkins, green peppers and other vegetables can be converted into vitamin A in the body.
Foods rich in vitamin c
Vitamin c can weaken the damage of light and oxygen to the lens of the eye, thus delaying the occurrence of cataract. Foods containing vitamin C include persimmon pepper, tomato, lemon, kiwi fruit, hawthorn and other fresh vegetables and fruits.
calcium (Ca)
Calcium is related to eyeball composition, and calcium deficiency can lead to myopia. Teenagers are at the peak of their growth, and the demand for calcium in their bodies is relatively increasing. If you don't pay attention to calcium supplementation, it will not only affect bone development, but also reduce the elasticity of the developing eyeball wall-sclera, increase the internal pressure of the lens, lead to the elongation of the anterior and posterior diameter of the eyeball, and lead to myopia. Foods containing more calcium mainly include milk and its products, shellfish (shrimp), bone meal, beans and bean products, egg yolk, dark green vegetables and so on.
chrome
Chromium deficiency is easy to cause myopia. Chromium can activate insulin and make islets exert the maximum biological effect. For example, if the chromium content in human body is insufficient, the function of insulin in regulating blood sugar will be hindered, and the osmotic pressure of plasma will increase, which will lead to the increase of osmotic pressure of eyeball lens and aqueous humor and the increase of diopter, thus inducing myopia. Chromium is mostly found in brown rice and wheat bran, and it is also abundant in animal liver, grape juice and nuts.
zinc (Zn)
Zinc deficiency can cause visual impairment, and zinc is mainly distributed in bones and blood in the body. Corneal epidermis, iris, retina and lens also contain zinc. Zinc participates in the replacement and transportation of vitamin A in the eyes, maintains the normal tissue state of retinal pigment epithelium and maintains normal visual function. Foods containing more zinc include oysters, meat, liver, eggs, peanuts, wheat, beans and miscellaneous grains.
Giant algae
Kelp contains 1/3 mannitol in addition to iodine. There is a thick layer of "frost" on the surface of dried kelp, which is mannitol in kelp. Mannitol has diuretic effect, which can reduce intraocular pressure and has a good effect on the treatment of acute glaucoma. Other seaweeds such as Undaria pinnatifida also contain mannitol, which can also be used as an auxiliary food to treat acute glaucoma.
You can tell by eating onions like this.
It is said that eating onions can improve your eyesight. Experts point out that onions can improve eyesight, but raw onions and garlic are harmful to eyesight, and people with poor eyesight should eat less.
There is a saying in ancient Chinese medicine books that "pungent smell is harmful to eyes", which means that vegetables are smelly and spicy, which will damage your eyesight. In fact, in addition to garlic, spicy vegetables such as ginger and raw onions are also bad for vision health. Therefore, experts remind people who like to eat these foods that it is best to cook them before eating, which can reduce the spicy taste of the food itself.
Eye protection recipe 1: Gouqi porridge
Raw materials: 5 grams of Lycium barbarum, 5 grams of mulberry seeds, 5 grams of Chinese yam, 5 pieces of red dates, and 0/00 grams of japonica rice.
Practice: Cook the above raw materials into porridge to eat.
Efficacy: Lycium barbarum and Mulberry can tonify liver and kidney, while Yam and Jujube can tonify spleen and stomach. If people with visual fatigue can take it for a long time, twice a day in the morning and evening, it will not only eliminate the symptoms of eye fatigue, but also enhance their physique.
Eye protection recipe 2: black beans and walnuts make milk.
Ingredients: black bean powder 1 spoon, walnut paste 1 spoon, milk 1 bag, honey 1 spoon.
Practice: 500 grams of black beans are fried, cooled and ground into powder. 500 grams of walnut kernel, slightly fried, stripped, cooled and mashed into mud. Take the above two foods 1 spoon, pour them into 1 cup of boiled milk, and then add 1 spoon of honey. Take it every morning or after breakfast, or with breakfast.
Efficacy: Black beans are rich in protein and vitamin B 1. The nutritional value is very high. Because black food into the kidney, with walnut kernel, can increase the strength of kidney. Together with milk and honey, these foods contain more vitamin B 1, calcium, phosphorus and so on. , can enhance the muscle strength in the eye, strengthen the regulation function and improve the symptoms of eye fatigue.
Sesame gouqi tea: soak Semen Astragali Complanati10g, Semen Cuscutae10g, Semen Sesami Niger12g, Fructus Lycii 20g, Polygoni Multiflori Radix15g, Herba Lycopi10g and salt10g.
Efficacy: improve vision and treat vision decline.
Spinach eye protection soup: pork liver 60g, spinach 130g, a little salt and sesame oil, Gao Qing soup 1l, decoct for about 20 minutes, and filter residue to keep soup.
Efficacy: nourishing liver and blood, improving eyesight and moistening dryness. Regular consumption can improve eyesight and treat night blindness and anemia in children.
Tangerine and osmanthus porridge: Cassia seed 10- 15g, Chrysanthemum 10g, Lycium barbarum 10g, japonica rice 50- 100g, appropriate amount of rock sugar, and porridge is cooked 1 time every day.
Efficacy: some honey can also be added to porridge to increase its intestine moistening effect, and Lycium barbarum also has eyesight improving effect.