Myopic laser surgery provides a good way for young myopic friends to remove their glasses, and the technology is relatively mature and not very harmful. This technology of eye laser surgery has been carried out for two or three decades, and with the upgrading of equipment and the maturity of technology, it is relatively safe, and the chances of major serious harm are extremely low at present, and no one has done experiments on side effects for a longer period of time now. According to the current side effects are: over-correction or under-correction, to be observed after a period of time, but also the second surgery. The corneas of eyes that have undergone laser surgery are fragile, and even if they are well corrected, they will rebound in the future without attention and revert to wearing glasses, as well as bring inconvenience to sports in the future. After laser surgery some people may experience glare, hormonal high eye pressure, dislocation of the corneal flap, increased astigmatism, dry eyes, and most seriously, infection of the corneal wound after surgery. Eye laser surgery can cause inconvenience to cataract surgery later in old age. In general, laser surgery, at present, is not very harmful, perhaps with rebound vision and dry eyes. The main possible hazards are corneal perforation decades later, infection and other serious complications.