Myopia can be treated with laser, but there are certain prerequisites for myopia to be treated with laser, as follows: 1, age: to use laser treatment, the age must be above 18 years old. 2, medical history and physical examination: no recent contact lenses, and preferably no further increase in degree in the last two years, or annual increase in degree is less than -0.50 don’t degrees, non-keloidal, and do not suffer from dry eye. Before the myopic surgery will be a detailed examination of the patient’s eye surface, such as conjunctival inflammation, blepharitis, dry eye, etc., or scarring, and other organic eye disease patients are recommended not to do myopic surgery. Generally, patients with myopia within -1.00 to -10.00 degrees can undergo laser surgery.