Myopia is a phenomenon that occurs due to the change in the nature of the refractive medium and the elongation of the eye axis; the causes of the change in the conductivity of the refractive medium or the elongation of the eye axis have not been fully investigated and the causes of this phenomenon have not been fully found. Therefore, the current research on myopia is focused on controlling the progression of myopia and preventing its occurrence. In terms of current technology, once myopia occurs, there is no way to reduce or restore it, but only to control the progression of myopia, and myopia cannot be cured with current technology.