After myopia appears in the eyes, it will definitely lead to different degrees of vision loss, and in order to restore vision it is necessary to improve vision through various optical correction methods. Currently there are several methods: the first, frame glasses, which is the most classic method, is also currently the most applied a method. The second, corneal contact lenses, which are usually called contact lenses, are also able to improve vision. The third, surgical treatment, generally after the adult can consider refractive surgery to improve vision, including corneal refractive surgery and intraocular refractive surgery, such as the commonly used excimer laser surgery, femtosecond laser surgery. Other than these three methods, there is no other method for myopia correction and treatment, nor is there any conservative method to restore myopia to normal.