Laser myopia correction is surgery on the cornea, is cutting the cornea after the formation of refractive error correction, the sequelae are as follows: a. Corneal infection: some people will have epithelial hyperplasia after surgery, resulting in diffuse interlaminar keratitis. Because some people after corneal recovery, the wound will be exposed to the air, if the patient does not pay attention to hygiene, it is easy to cause inflammation and infection, which is a common sequelae. Second, the cornea flattening: because it is cutting on the cornea, pay special attention to the thickness of the cornea, if improper operation, it will cause overcorrection or undercorrection, and some people if the degree is not stable, the indications are not well grasped, it will also cause refractive regression. Third, other sequelae: some nerve fibers on the cutting cornea can develop dry eye, and without attention to the choice of pupil diameter, glare may occur after surgery, and night vision will be impaired. Although most people are suitable for keratoconus surgery, it is important to grasp the indications before surgery. Only with a good choice of indications can each person’s postoperative complications be minimized. Most people have excellent postoperative results after choosing the right indications.