The fifth and sixth grades of primary school are the period when myopia is most common! When you are a parent, you need to take precautions in advance.

Parents who go to pick up their children from get out of class every night may find that many children have put on a pair of glasses on their little faces early, which makes people feel distressed. But the reality is that as the pressure of competition increases, the rate of myopic children is increasing year by year. In the 20th century, wearing a pair of glasses may have been a symbol of \”knowledge\”, but in the 21st century, letting children wear glasses early will be a waste. Not a good thing. However, many parents may not know how to prevent myopia and what factors lead to myopia. In order to reduce the number of children who go to school with \”wine bottle bottoms\” in the future, today we will talk about \”myopia\” in detail. 1. Reasons Generally speaking, working and studying at close range for a long time are the most important causes of myopia. What is the principle? There is a muscle called the ciliary muscle in the human eyeball, which is used to control the imaging focus of the human eye. Working at a desk for a long time will over-strain this muscle, which in turn causes ciliary muscle spasm. This is what we often call Pseudomyopia can be relieved or recovered after a period of rest. However, if myopia at this stage is not taken seriously, it may develop into true myopia, causing permanent changes in the eyeballs, making it difficult to treat. Many surveys have shown that the prevalence of myopia increases significantly starting from the fifth or sixth grade of primary school. Because the fifth and sixth grades are when students begin to slowly transition to high-intensity learning, homework begins to increase and study time increases significantly. If parents don\’t pay enough attention to their children\’s vision at this stage, the children may have to live with glasses for the rest of their lives. 2. Prevention To prevent myopia, from a medical point of view, it is necessary to regularly relax the ciliary muscles and prevent excessive muscle tension. In order to achieve this, parents should mainly do the following: 1. Control their children\’s eyesight. Of course, there are not many children who study for an hour at a time, but there are a lot of children who watch TV and computers for several hours. At this time, parents need to control their children\’s eye use time. Try to get up every half an hour, close your eyes for a while, and look at the distance to effectively protect the elasticity of the ciliary muscles. If the child feels bored, parents can take the child to do some sports. Playing basketball, badminton, etc. can not only protect the eyes but also improve physical fitness. Why not? 2. Choose suitable tables and chairs. Unsuitable tables and chairs will cause children to develop bad eye habits and learning postures. If the height difference between the chair and the tabletop is too large or too small, it will not be conducive to children\’s eye hygiene. Tables and chairs suitable for children to study can refer to the following standards. A simple way to check whether the height is suitable is: Table: Both feet are flat on the ground, the thighs and calves are basically vertical, and the front edge of the tabletop does not contact the thighs. Chair: When the arms are placed naturally on the table, the upper arm and the forearm are basically vertical, and the height of the tabletop is just in contact with the lower plane of the forearm. There are also many special anti-myopia tables and chairs for children on the market. If you are too lazy to measure, going to the mall to buy a set of special tables and chairs is one of the simple and labor-saving methods. 3. Use lights with appropriate brightness. Using appropriate lights is also a very important aspect of eye hygiene. Lights that are too dark can easily make children feel eye fatigue. If a child always complains about sore eyes when studying, it may be the problem with the lighting. achievement\”Lao\”. What is the appropriate lighting? The child does not feel effortful or dazzling when reading. Generally, ordinary light bulbs of 15 watts and energy-saving lamps of 3 watts are more suitable brightness, while yellowish lights are more suitable than yellowish lights. Blue light is less likely to cause visual fatigue, so how to choose a desk lamp, have you learned? 4. Be careful of bad eye habits. Dou Dehui himself is a person with poor eye habits, because when he was a child, he secretly read novels under the covers. Nowadays, we carry a pair of beer bottle bottoms to work every day, and there are actually not a few children who have this stinky habit of the editor! Reading is certainly a good thing, but parents must also stop their children from secretly reading in the middle of the night. Not enough. Bright lights and too close a reading distance are real vision killers.