Myopia surgery can be performed after the age of 40, and the more appropriate age for myopia surgery is generally around 18 to 45 years old. Whether or not to have myopic surgery depends on the patient’s own need for vision improvement. Since 40 is relatively young, you can get rid of glasses by taking laser myopia surgery to correct your vision, especially your naked eye vision. Even if presbyopia occurs after the age of 45 weeks, it is still possible to retain 5 years of better vision, and when presbyopia occurs, it is acceptable for a normal person to wear presbyopia glasses. Side effects such as undercorrection, dry eye, and glare refractive regression may occur after myopia surgery, but the probability of all of them is relatively low, while the procedure has no therapeutic effect on vitreous clouding and myopic fundus changes. For myopic patients in their 40’s, surgery can be considered if needed, but should be authoritative medical institutions to visit, under the guidance of the doctor to improve the examination, to exclude contraindications to surgery.