First, those who suffer from eye diseases such as cone cornea, glaucoma, rabbit eye, dry eye, corneal endothelial degeneration, etc. are contraindications to LASIK laser surgery. Those who have ever had fundus hemorrhage or retinal detachment (depending on the current situation) are contraindications to LASIK laser surgery. Those who have active inflammatory lesions of the eye, such as acute conjunctivitis, blepharitis, keratitis, corneal ulcer, dacryocystitis, iridocyclitis, etc. are the contraindications to LASIK laser surgery. Those who have very high requirements for eyesight and have great concerns about surgery are the contraindications to LASIK laser surgery. Those who have mental diseases and are taking medication are the contraindications for LASIK laser surgery. Severe amblyopia with very poor corrected vision is a contraindication for LASIK laser surgery. Those with high myopia, large pupils and thin corneas are the contraindications to LASIK laser surgery. Patients with keloid, diabetes, autoimmune diseases and other diseases that affect the healing of corneal wounds are contraindications to LASIK laser surgery. LASIK laser surgery for many myopic patients completely free from the trouble of glasses, but in the implementation of LASIK laser surgery before, must go to the regular hospital for examination, consult the doctor in all aspects of the precautions, not to LASIK laser surgery negligence.