First of all, let’s learn about the vision standards for children of different ages. Yes, not all children’s vision standard is 1.5 oh. The lower limit of normal visual acuity for children of different ages: (Please note that it is the lower limit of visual acuity Oh) 3 years old: 0.5 4~5 years old: 0.6 6~7 years old: 0.7 7 7 years old and above: 0.8 Best corrected visual acuity of the two eyes Difference of two rows or more, the worse one eye is amblyopia. Attachment: Conversion between decimal recording visual acuity chart and standard logarithmic visual acuity chart 0.1—————4.0 0.12————–4.1 0.15————–4.2 0.2—————4.3 0.25————–4.4 0.3- ————-4.5 0.4—————4.6 0.5—————4.7 0.6—————4.8 0.8—————4.9 1.0—————5.0 1.2—— ———5.1 1.5—————5.2 2.0—————5.3 Children in this age group are in a critical period of vision development, and should be exposed to a colorful and rich visual environment to promote their vision development.2.5-3 years of age should begin to teach children to learn to identify the E-scales (E-scales). If your child is found to have problems such as strabismus, tilting the head, walking or grasping objects, etc., you should go to a regular hospital for treatment. Some children who do not have “cross-eyes”, i.e., internal strabismus, until the age of 2, but find that they have internal strabismus when they read, watch TV, or pay attention to things after the age of 2 when most of the time they have normal eyesight, need to go to the hospital as soon as possible, because they are likely to have a high level of farsightedness, and amblyopia is likely to develop. (Amblyopia means that the best-corrected visual acuity is lower than the low limit of visual development for children of the same age). Some parents worry that toys hanging from the crib will cause strabismus in their child, but this does not happen. Some parents suffer from high myopia, large astigmatism, or amblyopia themselves. Such children should be screened in a regular hospital around the age of 2. Kindergartens have regular routine checkups for children, and usually conduct vision checkups every six months. The kindergarten teacher will communicate with you in time if the result of the vision examination is abnormal, and then you need to go to the hospital in time. Sometimes children aged 3-4 years old can already see up to 1.0, but you can’t let your guard down. Children whose vision develops too early may gradually become nearsighted, so you need to let your child engage in more outdoor activities, minimize close eye contact, and eat a well-balanced diet. If your child’s visual acuity is decreasing rather than increasing year by year, you need to be alert to the possibility of myopia, and you should bring your child to the hospital as soon as possible for early intervention. Check-ups at primary and secondary schools are more formalized. Once the school informs you that your child’s vision is abnormal, you need to go to the hospital as soon as possible. Some children’s vision abnormalities are characterized by squinting, sideways vision, and close-up vision. All of these symptoms indicate that your child may have a vision problem and should be diagnosed as soon as possible. After being diagnosed with vision problems, your child should be treated or trained according to the doctor’s instructions. You should not blindly believe in the propaganda of for-profit vision protection organizations to avoid over-treatment and over-training, which will not only cause unnecessary financial burden, but also delay your child’s condition and miss the best time for treatment. The incidence rate of strabismus and amblyopia is around 4%, and its treatment has age limitation, it is best to detect it at the age of 3-5 years old and start the treatment actively, the effect of the treatment is limited after the age of 10 years old, and it is difficult to achieve normal vision after the age of 12 years old. The incidence rate of myopia in China is around 50%, and many children are already in the middle to high level of myopia when they first discover myopia, which is extremely unfavorable to the prevention and control of children’s myopia. Therefore, the early detection of visual abnormalities depends on the close cooperation of parents, kindergartens, schools, hospitals, and most importantly, the parents who are with their children all the time.