There should be many reasons for this, personally I thought the following:

First.Too much study load and too much homework for the child.

Secondly, the popularity of cell phones and computers, some children tend to play games excessively, coupled with learning, eyesight fatigue. Over time, naturally myopia.

Thirdly, students' knowledge of eye care, and the means of eye protection are not well disseminated. Parents have a responsibility, and so do schools.

Fourthly, Chinese children's physique is on the weak side, and they tend to be weak and sickly since childhood, and their diets are unreasonable, their medications are unreasonable, and the toxic side effects of medications can cause localized damage to their eyesight.

Fifthly, it is possible that children's eye diseases are further aggravated by factors such as unscientific methods of wearing spectacles, irregularities in the organization that dispenses spectacles, the quality of some spectacles not being up to standard, and wearing spectacles that are not suitable for them.

In short, myopia eye disease, prevention is greater than cure, popularize scientific knowledge of eye use, and find regular wear glasses unit with glasses, are to ensure that the basic premise of vision recovery. It is not enough to rely on a momentary effort, which requires a lifetime of care to be able to.

After being nearsighted, wearing glasses unscientifically is definitely not good for your eyes and vision. But let's get to the root of the problem... What exactly causes so many kids to be nearsighted? There are three main reasons:

Too much close eye contact.In order to get into a good school, it is not easy for children nowadays, writing homework until late, attending extracurricular classes on Saturday and Sunday, and having homework in extracurricular classes, which leads to excessive close eye use. If the pencil grip and sitting posture is not correct, sticking the head into the books, the pressure on the eyes is even greater. It's hard to finish homework, children's way of relaxing is to watch TV, play cell phones, play games, watching electronic screens also belongs to close eye use. Over time, the above habits may cause children's eye pressure to increase, the eye axis to become longer, and myopia will come to them.

Lack of outdoor exercise.Outdoor exercise is not only good for children to increase muscle, strong bones, happy mood, but also very good for the eyes. Because in outdoor sports, the retina is exposed to more light time, light stimulation is conducive to its synthesis and release of dopamine, shorten the eye axis, prevent myopia. The actual situation is that many children's physical education classes are neglected, language, math, English and other main courses often take up physical education classes. Some physical education teachers are not very responsible and do not provide proper guidance to children in physical education classes, so children will stand idle and chatting in place, which does not serve the purpose of promoting health.

Dietary imbalances.Dietary nutrient deficiencies can also lead to myopia. Many children have the habit of picky eating, like to eat fried chicken, French fries and other fried foods, do not like to eat vegetables, fruits and coarse grains, if parents do not pay attention to correct, in the long term, directly lead to the child can not be from the diet of adequate intake of vitamins and minerals, unaware of the fact that these nutrients are essential to the development of the eyeballs.

In addition to the above factors, myopia due to genetic factors is also common. The risk of developing myopia can be more than one and a half times higher for those with one myopic parent and those with both myopic parents than for those with no myopia at all.

If you want to prevent myopia, you should start by correcting and improving the above mentioned bad factors. I have written an article about my child's myopia, you can follow me and check out my list of articles, I hope it will help you. ▲(Respondent: Health Walker, welcome)

It's not.

Myopia is most often caused by prolonged close eye use and the environment, as well as some genetic factors.

Children, nowadays, use their eyes too much up close.

Too much indoor activity, not enough outdoor activity, not enough light.

That's the main reason.

Children myopia more than the first is too much electronic equipment, TV cell phone tablet with too much, stimulate the eyes. I feel that another is now the children hide indoor play, no field to look far away from the time, is also a problem, as well as small children partial food, the overall feeling is excessive eye use, in addition to class time, and counseling classes, how much time a day with eye fatigue?