The maintenance time of laser eye drilling is related to the patient’s degree and whether he/she has hygienic eye habits after surgery, and cannot be generalized. Laser eye surgery is a surgical procedure to correct refractive errors, mainly by changing the thickness of the cornea to improve myopia, but not thereby changing the underlying cause of myopia. Therefore, if the patient continues to use the eye poorly after surgery, long-term fatigue of the eye, do not pay attention to eye hygiene, can still be re-emerging myopia. However, if the myopia does not increase sharply 2 years after surgery, with an annual increase of <150 degrees, the possibility of reversion after surgery is relatively small. Therefore, patients must pay attention to eye protection after surgery, and if dry eyes, halos, overcorrection or undercorrection occur, they should return to the ophthalmology department in time for review and appropriate treatment. Therefore, patients who decide to take laser correction pre-surgery, must do a good job of preparation, requiring two years of relative stability of the degree before surgery, 18 years of age or older and no contraindications to surgery, can take surgery.