The human eye is like a camera, with a lens and a negative. The so-called lens is the refractive system, this system is out of order, is farsighted nearsighted astigmatism, the so-called negative, is the retina, is a layer of nerve cells. When a camera ‘lens’ has a problem, ‘negative’ imaging is not clear, these nerve cells is the sleep state. Then, we take advantage of a pair of glasses to help focus the lens, so that the image of the negative is clear, these sleeping cells, you can get a clear object stimulation, gradually gradually awakened, you can get the information transmitted to the brain. This shows that 1, the cause of amblyopia is mostly caused by hyperopia myopia astigmatism. 2. The time to treat amblyopia is before the age of 8, and no later than 12, otherwise, the retinal cells will sleep for a long time, forever. 3, treatment requires a process, a few years before you can wake up completely, do not believe the exaggerated claims. 4, “lens” development is by itself, just like the doctor’s drugs, mother’s nutrition can not change the child’s appearance, children’s astigmatism can not be changed by external forces, large degrees of astigmatism can not remove glasses. The credit goes to the child himself for the simple low to moderate degree of farsightedness that can be removed. This is a common cause of amblyopia, and other causes include strabismus, form deprivation, refractive interstitial, and unknown causes. I wish all the children in the world to grow up healthy and never be troubled by diseases!