Children will have some precursors before myopia, such as blinking, hoeing, squinting, often blinking, looking too close, frowning, pulling the corner of the eye to see things. Often some parents don't pay much attention to it. When the child says that he can't see the blackboard, he has missed the best correction period. When we find that children often have these bad habits, they should take their children to the professional optometry center and eye hospital for screening. First, see if the child is true myopia or pseudomyopia? Let us first understand the difference between true and false myopia. False myopia: also known as accommodative myopia, mainly because long time reading and writing to see the mobile phone, etc., causing excessive contraction of the ciliary muscles of the eye, and even causing paralysis, resulting in unclear vision. False myopia If proper treatment and attention to eye habits, etc., vision can be restored, because the length of the eyeball has not changed qualitatively. This sounds like pseudo-myopia seems to be very friendly, right? But in fact, it is difficult to have a clear boundary between the two. True myopia often develops on the basis of pseudo-myopia. True myopia: The eye axis of patients with true myopia is significantly higher than the original. According to expert analysis, the myopic axis of the myopic eye increases by 300 degrees for each 1 mm increase in myopia. Generally, the near 300 degrees is regarded as low myopia, the 300 to 600 degrees is called moderate myopia, and the 600 degrees or more is called high myopia. The development of myopia in young children is fast, with an average growth rate of 100 to 150 degrees per year, and it will not stabilize until after 18 years of age! If your child often has these small movements, the signal of myopia may already appear. Parents must pay attention! ! ! 1. Look at things often When you find that your child is always blinking when reading a book or watching TV, parents should pay attention. Because of the blinking, the eyelids can block a part of the pupil to reduce the scattering of light, which can temporarily improve and improve vision. However, if this situation continues for a long time, it is likely to cause myopia. 2. Always look at things Some children will always look at things in the early stages of myopia, because looking at things can reduce the impact of scattered light on vision, and things will be clearer. Therefore, if you find that your child is always looking at things, be sure to correct them in time. 3. often squinting at things When a child has a squint to see something, it may be that one of the eyes has decreased vision, and the thing that is seen will inadvertently use the normal eye. Therefore, the child may often be a sign of myopia when looking at things with his eyes obliquely. 4. Frequently frowning to see things Frowning is also a way for children to try to improve their vision. Frequent frowning can cause the extraocular muscles to press the eye, reverse stimulating the muscles of the eyes, and accelerate the formation of myopia. Some children also appear to pull the corners of their eyes or blink their eyes. 5. Frequently blinking to see things Frequent blinking can alleviate myopia to a certain extent and increase vision clarity. When your child can't see things, they may choose to keep blinking to make their vision clearer. Summary: Therefore, when we find that children have the above bad eye habits, we should take the children to the professional optical shop and eye hospital for a check to eliminate myopia, so as not to miss the best correction period.