Nearsightedness often occurs in children and adolescents. This is because there is more near eye use, more pressure to study and more frequent use of electronic devices during this period. Myopia can be corrected by wearing frames, keratoplasty lenses and refractive surgery. Children and adolescents under the age of 18 who still have myopia after astigmatism are called true myopes. If the degree of myopia is 600 degrees or more, it can be restored by wearing frame glasses and refractive surgery. If the myopia is below 600 degrees, it can be restored by wearing frames and keratoplasty. It is important to note that frames can only help with clarity of vision, but do not control the progression of myopia. Corneal shaping lenses not only help with clarity of vision, but also control the progression of myopia. Refractive surgery can be used to restore myopia in adults. Currently, the most commonly used refractive surgery methods are: semi-femtosecond, full femtosecond, T-PRK, etc. Myopia can be recovered by following the above methods if it is true myopia, or by taking rest or medication to dilate the pupil if it is pseudomyopia.