The best period for treating amblyopia 1.1-3 years old: the critical period for treating children with amblyopia 2.4-8 years old: a sensitive period for treating children with amblyopia. 3.9-14 years old: still curable, but the course of treatment is slightly longer. 4.Above 14 years old: almost no hope of cure. The key to amblyopia treatment is accurate optometry, and children also need dilated pupils for optometry and appropriate glasses. Methods of treating amblyopia: (1) Traditional masking method + fine vision homework: cover the eye with good vision and force the amblyopic eye (eye with poor vision) to see, while doing fine vision homework, such as: training with amblyopic inserts to stimulate the development of the optic nerve system and make the amblyopic eye improve its vision. This method is simple and easy to implement and is suitable for strabismic amblyopia and refractive amblyopia with reliable results. (2) Visual stimulation therapy (i.e., CAM stimulator): the use of contrast, spatial frequency of different bars, as a stimulation source to stimulate the amblyopic eye to improve visual acuity. This method is easy to implement, each treatment time is short, quick results, especially for refractive amblyopia, other suppression therapy, posterior image therapy, etc.