We must know about the prevention of myopia in children

Abstract: visual fatigue is another common discomfort of myopia, which is mostly related to the imbalance of regulation and collection. Myopia is used to reading and writing at close range. After reading and writing for a long time, it can cause discomfort such as blurred vision, eye swelling and headache; Squinting at objects to improve vision can lead to fatigue.

what is myopia? What are the manifestations of myopia?

A: myopia refers to that when the adjustment is still, the parallel light enters the eye and focuses in front of the retina. What falls on the retina is an unclear image. This kind of ametropia is called myopia.

  1. Vision loss is the main symptom of myopia. Myopia needs to move the object closer to see the object in front, Or wear myopia glasses (concave lens). Patients with mild and moderate myopia have low far vision, but normal near vision, which is characterized by blurred distant objects, but not difficult to read and write. While those with high myopia have poor far and near vision. High myopia will have degenerative pathological changes of eye tissue and corresponding symptoms. For example, vitreous opacity can produce floater disease, and retinal choroidal degeneration can produce macula Bleeding, atrophy and even retinal detachment form serious visual impairment.

  2. Visual fatigue is another common discomfort of myopia, which is mostly related to the imbalance of regulation and collection. Myopia is used to reading and writing at close range. After reading and writing for a long time, it can cause discomfort such as blurred vision, eye swelling and headache; Squinting at objects to improve vision can lead to fatigue.

factors that may cause myopia

1 Genetic factors:

myopia has a certain genetic tendency, which has been recognized, especially for high myopia. But for general myopia, this tendency is not very obvious.

  2. Development factors:

and

infants are hyperopia because their eyeballs are small. However, with the increase of age, the ocular axis is gradually lengthened, and they develop normally until puberty. If they develop excessively, they form myopia. This kind of myopia is called simple myopia, which mostly starts in school age.

  3. Environmental factors:

1) there is too little time for outdoor activities.

now the living space is too narrow. Children spend most of their time indoors and use their eyes at close range. Children’s eyes are very adaptable. They will adjust themselves to adapt to this close range. Moreover, more time in the house, more opportunities to watch TV and play computer. If you don’t pay attention to distance and posture, it’s easy to make your eyes too tired.

2) mainly indoor games.

during outdoor activities, the eyes will automatically adjust to see things at different distances, and use the eyes alternately from far to near, so that the ciliary muscles of the eyes can be adjusted without fatigue. Now, for reasons of safety and convenience, parents mostly let their children play at home. Even if you make an appointment with a child, you can either go to his house or at your house, or mainly play indoor games. In this way, children use their eyes at close range, and the burden on their eyes is very heavy.

3) improper light intensity

“is the light bright enough? I’m worried that too dark light will affect children’s vision.” We usually think so. Now the light for children to read and write is not too dark, but too bright. Too strong light can easily make children’s eyes tired. What children need is soft light, and make sure that the light comes from the left front of the child. Therefore, when children read and write in the evening, they can choose a lamp that can adjust the brightness to soft.

5) the paper and printing of books are too “fastidious”. The more and more exquisite printing and paper make children’s books more and more ornamental. However, these exquisite books may also hurt children’s eyes. Coated paper is too reflective, especially at night, shaking your eyes. This dazzling light is called glare in medicine. It makes you less clear what you want to see and makes your eyes more tired. After the child is born, the visual development is not mature, and it will not approach the adult level until the age of 5.

how to prevent and treat children’s myopia

1 Cultivate children’s correct reading and writing posture. Don’t lie on the table or twist your body. Books and eyes should be kept at one meter, Keep your body a fist (adult) away from the desk and your hand an inch away from the nib. The school desk chair should be suitable for students’ body.

2. Don’t read and write for too long, and have a 10 minute rest after 30-40 minutes. Look into the distance and see more green plants.

  3. There should be proper light when writing and reading. The light is best 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. Ensure that children have at least one hour of physical activity every day.

  5. Teach children not to write too small and too dense, and not to write obliquely and cursive. Don’t write too long.

  6. Let children learn to do eye exercises.

  7. When watching TV, pay attention that the height should be level with the line of sight; The distance between the eye and the fluorescent screen shall not be less than 5 times of the diagonal length of the fluorescent screen; When watching TV, a small electric light should be turned on indoors, which is conducive to protecting eyesight; After watching TV for 30-40 hours, have a short rest.

  8. Children should be allowed to eat more foods rich in alpha vitamins, all kinds of vegetables and animal liver, egg yolk, etc. Carrots contain vitamin B, which is good for eyes; Eating more animal liver can cure night blindness; Children with myopia generally lack chromium and zinc. Children should eat more foods containing zinc. Foods such as soybeans, almonds, laver, kelp, mutton, yellow croaker, milk powder, tea, meat, beef and liver contain more zinc and chromium, which can be increased appropriately. Zinc is best taken protein zinc. Eat less foods high in sugar.

  9. Myopia should be prevented and treated in different grades, and early and small. Actively correct and prevent in-depth development. If myopia has occurred, go to the hospital for optometry and wear appropriate glasses. Pseudomyopia can be corrected by far fog vision, massage or crystal gymnastics, physical therapy and drugs.

10. 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.