1. When people get old, their eyesight gradually declines, mainly manifested as presbyopia and cataract, which are all caused by lens aging. In order to prevent presbyopia and cataracts, we should often eat foods rich in vitamin B 1, such as coarse grains, peanuts, soybeans, peas, lean pork, egg yolk, animal hearts, livers and kidneys.

2. Vitamin B2 can maintain the normal metabolism of retina and cornea. If vitamin B2 is lacking, the eyes will have tears, redness, itching, spasm and other symptoms. We should eat more milk, goat milk, lean meat, eggs, lentils, animal livers and kidneys rich in vitamin B2.

3. the intake of vitamin c in the diet will affect the transparency of the crystal. Lack of vitamin C is one of the main causes of senile cataract. Fresh fruits are rich in vitamin C, including seabuckthorn, Rosa roxburghii, kiwi fruit, jujube, fresh jujube, hawthorn and so on. Vegetables rich in vitamin C include rape, Chinese cabbage, coriander, tomato, chrysanthemum and spinach.

4. protein is an important part of eyeball. Without it, the eye tissues are prone to aging, functional decline and even blindness. Therefore, attention should be paid to ensuring the supply of protein in the diet. Animal protein, such as chicken, duck, fish, cattle, sheep, rabbits, pigs, milk, eggs, etc. Soybean and its products and other plant proteins.

There are tricks to prevent presbyopia.

When people reach middle age, the contractility of ciliary muscle gradually weakens, and the adjustment function is relatively reduced. At the same time, the lens gradually hardens with the increase of age, and its elasticity also decreases, which reduces the adjustment ability of the eyes. So after 40 years old, I will gradually feel that my eyes are not sharp. At first, it can be manifested as insufficient light, difficulty in seeing near objects, blurred eyes after a long time, or too long working hours at close range, such as writing and reading newspapers, looking up at the distance, and suddenly unable to see clearly, only after pausing for a while or pressing your eyes lightly, can some people see things at close range for a long time, which will cause sore eyes and dull pain. This progressive visual impairment is called presbyopia.

Is there any way to delay this physiological degradation of the eyes?

1. Blink frequently. It can relax the eyes and exercise the eye muscles.

2. Roll your eyes frequently, exercise the eye muscles and speed up the blood circulation of the eyeball.

3. Pay attention to the correct reading method. Sit comfortably and relax your muscles while reading. Keep your head vertical and don't lean forward too much. The target is about 20 cm away from the eye. The light comes in from the left. Don't read in the car. Don't force reading when you are tired.

4. Don't squint at things.

5. Close your eyes and walk from darkness to sunshine and watch TV for a while.

6. Do more full-body exercise.

7. Pay attention to the supply of various vitamins. Eat more foods containing vitamin A and vitamin C, animal offal, such as pig liver and sheep liver, and all kinds of fresh green leafy vegetables. If the diet still can't meet the needs, you can also take vitamins A and D and vitamins C and B directly.

8. Take some Chinese patent medicines appropriately.

Zhang

References:

Shenzhen Business Daily Chen Xing Online

Another answer:

1. Blink frequently. Blinking won't affect reading, but it can relax eyes and exercise eye muscles.

2. Turn your eyes frequently, so that your eyes can turn back and forth in all directions, such as up and down, left and right, to exercise eye muscles and speed up blood circulation of the eyeball.

3. Pay attention to the correct reading method. When reading, sit comfortably and relax your muscles Keep your head vertical and don't lean forward too much, or you will strain your neck and back muscles. The target is about 20 cm away from the eye. The light should enter from the left, and it is not allowed to flash or directly illuminate the eyes. Don't read in the car, and don't force yourself to read when you are tired.

4. Learn to focus on a small goal, such as reading word by word, don't glance or squint.

5. Close your eyes and walk from darkness to sunshine. Don't let the sunshine shine directly on your eyes. Don't stare at TV, watch for a while and have a rest.

6. Do more physical exercises, such as playing Tai Ji Chuan, running and walking. , to speed up the whole body blood circulation.

7. Pay attention to the supply of various vitamins. From youth, pay attention to the distribution of nutrients in the diet, and eat more foods containing vitamin A and vitamin C, animal offal, such as pig liver and sheep liver, and various fresh green leafy vegetables. If the diet still can't meet the needs, you can also take vitamins A and D, vitamins C and B, and inositol nicotinate tablets.

8. Take some Chinese patent medicines appropriately. Traditional Chinese medicine believes that presbyopia is mostly caused by kidney deficiency, and the treatment should be tonifying kidney and replenishing essence. You can take Mingmu Dihuang pills twice a day, each time 1 capsule. If the vision is unclear, accompanied by dizziness, dry mouth, fever of the five senses, soreness of the waist and knees, red tongue, rapid pulse, etc., it is caused by kidney yin deficiency, and it is appropriate to nourish yin and tonify the kidney. The raw materials used are 25g of radix rehmanniae, Fructus Corni 15g, Rhizoma Dioscoreae 15g, Rhizoma Alismatis 15g and Cortex Moutan 15g. One dose a day, decocted in water.