The best age to treat amblyopia is before 6-7 years old would be better. The normal development of vision is sharper at the age of 3-6 years old, which is an important and sensitive period, and the development of vision at this stage is also prone to problems. Because children at this stage may have high hyperopia, high myopia, or astigmatism or strabismus, all of these conditions can lead to amblyopia, which the child cannot express, and if parents do not detect it in time, it is likely that treatment will be delayed. So at this age, children must come to the hospital regularly to have their vision checked and, if necessary, refractive examinations performed. This is because if amblyopia is detected in a timely manner and treated actively, it will be treated completely before the age of 6-7 and will not lead to a situation where vision cannot be raised later. Therefore, amblyopia should be detected and treated early, and the results are better before the age of 6-7.