Can amblyopia be cured? What is the best age for treatment? Factors that may affect the outcome of amblyopia treatment include family history (amblyopia or/and strabismus), infantile disease, type of amblyopia, original visual acuity, refractive condition, type and degree of strabismus, age of first diagnosis and nature of gaze. It has been clinically proven that the original visual acuity of the amblyopic eye (the milder the amblyopia, the higher the efficacy) and therefore whether amblyopia can be cured are related to many of these factors. Many parents think that amblyopia should be treated when the child is older, because the child will understand and cooperate easily with the treatment. This is because children’s visual function is unstable during their visual development, and it is easy for amblyopia to occur as well as to return to normal. Some studies have shown that the critical period is within 2 years old, the sensitive period is before 6-8 years old, the treatment effect is extremely poor after 10 years old, and it is almost hopeless to treat after 12 years old. The treatment of amblyopia is not an overnight matter, but a constant battle. Preschool children have more time to cooperate with the treatment, and some treatments after school will be affected by learning, which often makes the treatment difficult and affects the efficacy.