Is your child’s myopia caused by your parents?

Abstract: according to a large number of survey data, high myopia comes from heredity, and there are great differences under moderate myopia. The genetic type of high myopia is autosomal recessive inheritance. Therefore, parents and children can not have myopia at the same time.

in medicine, myopia is a kind of ametropia. In recent years, many evidences show that environmental and genetic factors jointly cause the occurrence of myopia, and the probability of myopia caused by environmental factors is relatively large.

1. Genetic factors

according to a large number of investigation data, high myopia comes from heredity, and there are great differences under moderate myopia. The genetic type of high myopia is autosomal recessive inheritance. Therefore, parents and children can not have myopia at the same time. Heredity is often affected by the objective environment, that is, living conditions, which makes it mutate and increases the complexity of heredity.

2. Mainly indoor games

what did we play before? Playing gyroscope, throwing sandbags, playing hide and seek, rolling iron rings… In short, most of them are outdoor collective activities. 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. In fact, ophthalmologists believe that the lights for children to read and write are 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.

4. 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 have strong adaptability, and 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. No matter how close an object is outside, it must be farther than inside. Studies have shown that children who often exercise outdoors suffer from myopia less than children who don’t go out often.

5. The investigation of environmental factors

also shows that myopia comes from the influence of environmental factors. Environmental factors are mainly short-range work and poor working environment, which is the oldest theory. Although there are still some disputes, from a large number of relevant investigation and research reports at home and abroad, it has been recognized that heredity and environment are the main causes of myopia, and it is pointed out that environmental conditions are the objective factors that determine the formation of myopia. However, under the influence of close reading or close work.

6. There are too many

when looking close. In the city, people’s line of sight is less than 5 meters most of the time. You can’t explain to your children what the horizon is because you can’t see it at all! It is precisely because the vision in the city is not open and lacks an environment that can provide children with a panoramic view. It is easy to be short-sighted, and his hyperopia function will become weaker and weaker.

7. The paper of books is too flowery. The more and more exquisite printing and paper of

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.