Dear Parents: If you find that your child has the following phenomena: close vision, nystagmus, abnormal head position (tilt), squinting when watching TV, loneliness, and the phenomenon of “blindness” (infants around 3 months of age do not look at the target and do not rotate their eyes in response to the movement of people or objects), you should go to the hospital promptly for a checkup. In these cases, it is important to suspect that there is a visual abnormality, and you should go to the hospital for an examination in a timely manner. If there are refractive errors, strabismus, amblyopia, early treatment is needed. Because amblyopia is mainly formed at the age of 1 to 3 years, therefore, in principle, the earlier the amblyopia treatment, the better, many parents think that amblyopia should wait until after school to treat, when the child also understand the situation, the treatment is easy to cooperate, in fact, this is a mistake. The treatment of amblyopia is closely related to age, the younger the age, the better the effect. The younger the child is, the better the result will be. Treating amblyopia after adulthood is almost ineffective. The first step is to correct the refractive error with glasses. At present, the internationally recognized treatment methods are: 1, prescription glasses method; 2, surgical correction of strabismus method; 3, the healthy eye covering method; 4, red light stimulation method; 5, grating tracing method; 6, fine eye training (such as threading beads) and so on . The best period for treating amblyopia: 1. 1~3 years old: the key period for treating amblyopia in children. 2. 4~8 years old: the key period for treating amblyopia in children. 2.4~8 years old: the sensitive period for treating amblyopia in children. 3.9~14 years old: it can still be cured, but the course of treatment is a little longer. 4.Above 14 years old: almost hopeless to cure. Before 12 years old is the best period to treat amblyopia