It is also possible to treat amblyopia at the age of 12, but the effect is not so obvious and requires long-term adherence to treatment, standardized training under the guidance of a doctor and regular review. Generally speaking, before the age of 10 is a sensitive period for visual development, and amblyopia can be cured through vision testing and timely treatment at this stage. Especially before the age of 5 years old, the treatment effect is the best, after the age of 10 years old the effect is relatively poor, the older the effect, the worse. Therefore, once amblyopia is found, you should hurry up and treat it in time, do not give up treatment because of the age, so as not to regret a lifetime, affecting the child’s future learning and employment.