How much is the eyesight of primary school students qualified?

Under normal circumstances, normal naked eye vision can reach 1.0, which is 5.0. People with ametropia (myopia, hyperopia, astigmatism) will have lower visual acuity with the naked eye, but they can be corrected to normal visual acuity after wearing glasses 1.0(5.0).

If the vision after glasses correction is still lower than normal, a comprehensive eye examination is needed to see if there are other diseases in the eyes. If the corrected vision of the eyes is lower than normal, everything is normal after eye examination, and there is likely to be amblyopia.

Amblyopia refers to amblyopia with corrected vision less than 0.8 after correcting possible ametropia through optometry.

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To protect your eyesight, you should pay attention to giving your children more foods rich in vitamin A and beta-carotene?

1, yellow fruits and vegetables and green leafy vegetables: rich in beta carotene?

After taking beta-carotene, the human body will convert beta-carotene into vitamin A as needed, which can avoid poisoning due to excessive intake of vitamin A.

Therefore, β -carotene is a safe source of vitamin A intake. Because carotene is a fat-soluble substance, it is beneficial to absorb after being fried in oil, so giving raw carrots to your baby is not helpful to absorb β -carotene ?

2. Animal liver: a natural source of vitamin A?

The chemical name of vitamin A is retinol, also called anti-dry eye vitamin. The lack of vitamin A in human body affects the dark adaptation ability. If the child is stunted and has night blindness, it is especially effective to give the child food rich in vitamin A, which helps to protect the eyes. ?

Natural vitamin A generally exists only in animal liver, eggs, cream and cod liver oil, especially in animal liver, which is extremely rich in vitamin A. Parents can use chicken liver instead of pig liver. ?

In addition, it is best to choose an ordinary and regular brand to use cod liver oil, know the dosage of the product, and choose the appropriate cod liver oil to supplement vitamin A as needed. ?

3. Chinese medicine eye protection food?

General Chinese medicine says that Lycium barbarum, chrysanthemum, cassia seed and mulberry leaves all have the function of protecting the liver and improving eyesight, and drinking with these soaked water also has an effect on protecting eyesight. ?

Chrysanthemum tea is sweet and slightly cold, and has the effects of dispelling wind and clearing heat, calming the liver and improving eyesight. Suitable for drinking in summer. ?

Lycium barbarum L. tonifies liver, nourishes kidney and moistens lung, and Lycium barbarum L. leaves tonify deficiency and replenish essence, clearing away heat and improving eyesight. You can drink it directly with medlar or chrysanthemum in water, or with medlar leaf soup. ?

In addition, mulberry leaves and medlar can be used to make soup, which has a good eyesight improving effect. However, mulberry leaves are cold and are not recommended for children, which may easily cause diarrhea in children. ?

Children's eyes have a development process from low to normal. Although children can measure their eyesight from the age of 3, they are usually below normal standards.

1 year-old vision is about 0. 1~0.3, normal vision is about 0.6 at 3 years old, 0.8 at 4 years old, and it should be 1.0 at 7 years old.

Preschool children's vision can be divided into hyperopia and myopia. At present, some kindergartens and families have generally strengthened their cultural education for children, which has increased their visual burden and made their eyes tired. It is easy to explain that their far vision is low (that is, myopia), but most of them are pseudomyopia, which means they can recover without treatment or treatment.

Let preschool children use their eyes scientifically to protect their eyesight;

First of all, there must be appropriate ambient light brightness. For example, when going out, it is best to avoid direct sunlight. Indoor lighting without stroboscopic lighting is the best, which is beneficial to protect eyesight;

Secondly, it is also important to pay attention to the posture of closing your eyes and develop good reading and writing habits. Children should read books in a correct sitting position, keep a certain distance from their eyes, and avoid lying in bed and reading in the driving car when watching TV with their heads down or up;

Thirdly, shorten the time of using eyes at close range, and learn to control children to watch computer, TV or other activities that will increase their vision burden at home. When using eyes at close range, rest every 40 minutes 15 minutes;

Finally, we should increase outdoor activities. When exercising, we can not only promote our health, but also help our eyes relax.

Preschool children have a weak sense of self-control, so parents and teachers should help their children take care of their eyes. The key to the above points is whether we can really pay attention to and stick to them, otherwise good habits will not be formed at this time, and it will be even more difficult to change them later.

If the following conditions are found, most of them are abnormal: vision is less than that of the same age, binocular vision is asymmetric, and optometry shows pathological refraction. Parents and teachers should find eye diseases in time, so as to find them early and treat them early.

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