Does laser cure myopia operation have harm

Laser treatment of myopia surgery refers to myopia laser surgery, whether there is harm and whether the preoperative comprehensive examination, operating room conditions, doctors technical level, etc., analysis is as follows:

if the patient carries out a comprehensive preoperative examination, exclude contraindications, surgery in a regular hospital, operating room conditions are good, the doctor's technical level is relatively high, may not cause harm. If there is no perfect preoperative examination, vision is still unstable, there is not suitable for surgery, may cause harm. If the operation is done in an irregular institution, the operating room cleanliness is not up to standard, the doctor's technology is not mature, there may be harm.