As a pediatric ophthalmologist, myopic children are the most commonly seen in our daily clinics. Most parents are becoming more aware of the risk of retinal detachment and other blindness caused by high myopia, and will take the initiative to cooperate with doctors to give their children timely treatment with glasses and good eye habits to control the rapid growth of myopia. However, there are still some parents who think: “It doesn’t matter if your child is nearsighted, the big deal is to have laser surgery later. Can laser surgery really cure myopia? Is it true that every myopic child can have laser surgery when he or she grows up? Let’s take a look at myopic laser surgery. What is myopic laser surgery? Myopia laser surgery, commonly known as excimer laser surgery, uses a 193nm wavelength ultraviolet laser to accurately cut the optical area of the cornea, reshape the surface refractive index of the cornea, and achieve the goal of improving vision without lenses by reducing the curvature of the cornea in the central area. Therefore, the surgery involves cutting the patient’s corneal tissue, and the higher the degree of myopia, the more cornea needs to be cut away. For patients with thin corneas, the procedure is simply not an option from a safety standpoint. Can myopia be treated with laser surgery? It is easy to see from the principle of surgery that myopic laser surgery only changes the curvature of the cornea, allowing the refractive system of the eye to image external objects on the retina without the use of glasses. However, the changes that have occurred in the eye due to myopia, such as elongation of the eye axis, retinal thinning, and choroidal atrophy, have not been “cured”, so myopic laser surgery strictly improves the vision of myopic patients, rather than treating myopia at its root. Is myopia laser surgery safe? As long as a detailed examination is performed in a regular hospital, cone cornea or other eye diseases are ruled out, and a reasonable surgical plan is designed based on whether the patient’s myopia matches his or her own corneal thickness (whether the remaining corneal thickness after cutting is sufficient, usually greater than 450um), the surgery is safe. However, if the preoperative examination is not careful, if the potential risk of cone cornea is not detected, if the cornea is thin, if the myopia is large or if the myopia is still unstable, and if the age of receiving the surgery is too young, all these will lead to an increased risk of surgery. Strictly grasp the indications for myopic laser surgery 1. The patient himself has a strong desire to remove the lens and has reasonable expectations of the surgical results. The patient should be able to realize that laser cornea surgery only removes as much of the existing myopia as possible, but does not cure myopia at all. Once you do not pay attention to your eyes, you may still have myopia again. 2.Age at least 18 years old. 3.Refractive status is basically stable for more than 2 years. 4.Refractive error: myopia ≤ 1200 degrees, astigmatism ≤ 600 degrees. 5, to ensure that they have sufficient corneal thickness.