Abstract: Children’s physique and development are of great significance to the occurrence and development of myopia. The normal development of vision includes the development of visual organs and optic nerves, which is inseparable from the sufficiency of various nutrients such as protein, fat, inorganic salts, vitamins and trace elements., At the gate of primary school, pupils with thick lenses can be seen everywhere. Children’s myopia has become a big problem. So what causes children’s myopia? How can we prevent it?, These may lead to myopia in children. 1. Preterm birth is an important cause of myopia. The incidence rate of vitreous body in preterm infants is higher than that in term infants. The reason is that the premature infants are poor in life ability. Many premature babies need oxygen inhalation. Long time use of high concentration of oxygen can cause retinal edema, vitreous liquefaction, and cause excessive axial extension. 2. Genetic factors. Whether a child will be myopic has a certain relationship with heredity. Especially when both parents are highly myopic, the probability of children’s myopia will be greater. Even if they do not become myopic at birth, they will also become carriers of myopia genes. Once affected by the environment, they may develop myopia. Epidemiological studies also show that both parents are myopic, and the proportion of children with myopia is higher than that of ordinary families., 3. Malnutrition may affect vision. Children’s physique and development are of significant significance to the occurrence and development of myopia. The normal development of vision includes the development of visual organs and optic nerves, which is inseparable from the sufficiency of various nutrients such as protein, fat, inorganic salts, vitamins and trace elements. In case of nutrient deficiency, corresponding diseases may occur, and even affect the development of vision.,
now primary school students with thick lenses can be seen everywhere at the gate of primary school. Children’s myopia has become a big problem. So what causes children’s myopia? How can we prevent it?
these may lead to myopia in children.
1. Preterm birth
preterm birth is an important cause of myopia. The incidence rate of vitreous body in preterm infants is higher than that in term infants. The reason is that the premature infants are poor in life ability. Many premature babies need oxygen inhalation. Long time use of high concentration of oxygen can cause retinal edema, vitreous liquefaction, and cause excessive axial extension.
2. Genetic factors
whether a child will have myopia has a certain relationship with heredity. Especially when both parents are highly myopic, the child will have a greater chance of myopia. Even if he does not become myopic at birth, he will also become a carrier of the cause of myopia. Once affected by the environment, he may develop myopia. Epidemiological studies also show that both parents are myopic, and the proportion of children with myopia is higher than that of ordinary families.
3. Malnutrition may affect vision. The physique and development of
children are of significant significance to the occurrence and development of myopia. The normal development of vision includes the development of visual organs and optic nerves, which is inseparable from the sufficiency of various nutrients such as protein, fat, inorganic salts, vitamins and trace elements. Once the lack of nutrients occurs, corresponding diseases may occur, and even affect the development of vision.
4. Poor eye habits are easy to cause myopia.
children’s acquired behavior habits are also a main cause of myopia. Reading in an environment with insufficient or unstable light for a long time, too close distance between books and eyeballs, unclear book printing, long eye use time, etc. will increase eye load and easily cause myopia. In addition, some children’s improper reading and writing posture, inappropriate tables and chairs, failure to pay attention to eye hygiene and poor awareness of vision protection will aggravate vision fatigue and accelerate the development of myopia.
how to prevent myopia
1. Eye exercises: eye exercises are your best choice when your eyes are uncomfortable.
2. Heavy posture: train them to read and write correctly, and don’t lie on the table or twist their body. Books and eyes should be kept one meter. School desks and chairs should be suitable for students.
3. Light: there should be appropriate light for writing and reading. The light should be irradiated from the left. Do not read or write in too dark or too bright light to reduce the burden on students, ensure a 10 minute break between classes and reduce eyesight fatigue.
4. Eye use time: reading and writing time should not be too long. After 30-45 minutes, close your eyes, rest or look into the distance and relax for 3-5 minutes. Do eye exercises. (the use distance of handheld devices and computers is similar to that of reading and writing, so pay attention to the use time)
5. Exercise: actively carry out physical exercise to ensure that students have one hour of physical activity every day.
6. Playing badminton and table tennis can prevent myopia: in the process of playing, the eyes must quickly follow the trajectory changes of “small ball movement” such as badminton and table tennis, which has unexpected benefits for the improvement of eye function of children aged 5 ~ 9.
7. Virgin fruit: Virgin fruit is a vitamin warehouse. The content of vitamin A in virgin fruit is among the best in fruits and vegetables. Virgin fruit is also rich in vitamin C and vitamin P, which can remove free radicals and have strong antioxidant capacity, so as to protect cell DNA and avoid gene mutation. At the same time, the pectin in the virgin fruit can increase the elasticity of the skin, so eating it as a snack can not only beautify but also protect the eyes.
8. Apple: apple is also known as “bright eye fruit”, because it contains vitamin A and trace element selenium, which plays a key role in vision. According to the research of Indian scientists, the selenium content of normal retina is 7 micrograms, while the selenium content of eagle eye is 100 times that of human, which shows that sharp vision is related to selenium content; Some people who can’t see clearly at dusk are also caused by the reduction of rhodopsin synthesis due to lack of vitamin A. Therefore, eating some apples often can protect your eyesight.
9. Orange: the nutritional value of Kumquat peel is amazing. 80% of vitamin C is stored in the peel, which can not only detoxify the liver, but alsoIt protects the eyes and immune system, and its nutritional value is among the best in citrus fruits. The flesh of Kumquat peel is thick and smooth, with many oil cell points (that is, pressing will produce aromatic gas). In addition to eating fresh with skin, it is often used to make candied fruit, drinks, fruit wine and other leisure foods.