A recent authoritative study in the United States challenged the notion that treatment of amblyopia beyond the age of 8-9 years is ineffective. The efficacy of standard amblyopia treatment in children with amblyopia aged 7-10 years was found to show a striking improvement in visual acuity when examined with a standard visual acuity chart. In children who cooperated with the treatment, full masking treatment resulted in definite improvement in visual acuity. Preliminary results of another study on the treatment of amblyopes aged 7-18 years showed some improvement in visual acuity at this age. The idea comes from the world’s foremost authority on pediatric ophthalmology, the American Academy of Pediatric Ophthalmology. Therefore, we now encourage treatment for children over the age of twelve, but only with the consent of the child and the parents, who are willing to share the responsibility for the possible poor results of treatment and the impact on academic life. At the same time, the treatment of amblyopia must be standardized, otherwise the doctor cannot accurately determine whether the treatment is ineffective or whether the patient is being treated properly in the American language! The observation period of whether the treatment is effective or not is about 6 months, i.e. after 6 months of serious standardized amblyopia treatment. If there is no effect, you can consider terminating the treatment to avoid wasting time and energy. If the treatment is effective, the follow-up period should be extended to adulthood, because more than half of the older children treated well will have a relapse of amblyopia after stopping treatment for many years, i.e., their vision is bad again, at which point there is no way to treat them again.