After the age of 40, if the patient develops new myopia on the basis of the original myopia correction surgery, it is necessary to decide whether to have a second surgery to correct the myopia according to the current habits of eye use, and it is not mandatory to correct the myopia. After myopia correction surgery, if you do not pay attention to reasonable eye use, it is possible to develop new myopia, at this time, if the patient does not want to wear glasses or because of the needs of work, life, can not wear glasses, you can do a second surgery to correct, even if you are over 40 years of age can be done. However, after the age of 40, patients gradually begin to show signs of presbyopia. Even if the myopia is completely corrected by surgery, patients still need to wear glasses when looking at the near, and can not completely realize the removal of glasses, so patients have to decide whether or not to have a second surgery to correct the myopia according to their own needs, and it is not mandatory to have a surgery to correct the myopia. It is recommended that patients after refractive surgery follow the doctor’s instructions for care, regular review, and timely consultation after discomfort occurs.