If children with amblyopia occur at the age of 0-3 years old, or even 0-12 years old without formal treatment, they have already missed the critical period of visual development, and then treatment will be affected, mainly in the following aspects: 1, first of all, the treatment effect may be relatively poor, if the amblyopia is found and treated again after the adult, it may not be ideal to improve vision, and may also lead to lifelong vision loss. The poor vision factor will exist for life; 2, if it is single-eye amblyopia, poor vision eyes do not get light stimulation for a long time, normal people instinctively like to use the eyes with better vision to observe things, for poor vision eyes basically will not use, over time, the poor eyes may appear strabismus, and then produce internal or external obliquity; 3, because the usual observation of things is to use both eyes, if the poor vision It is difficult to form the stereo vision function of both eyes, resulting in stereo vision function cannot be established. Now that we are in the electronic age and VR age, we need to rely on the stereoscopic function of both eyes to observe the wonderful world, so if there is no stereoscopic function, it may lead to functional blindness and stereoscopic blindness, which will limit the future employment of children.