Laser surgery refers to the treatment of myopia through laser surgery, also known as keratomileusis, and is commonly performed with either excimer laser surgery or femtosecond laser surgery. The principle of these two procedures is basically the same, which means that the excimer laser or femtosecond laser means to cut the stroma of the cornea or the surface layer of the cornea, the cornea will be thinned, through this way can change the refractive state of the eye, equivalent to the degree of glasses to the cornea, can effectively correct myopia, improve vision, is the current ophthalmology more conventional surgery. If you have myopia and are over 18 years old, you can consider surgery to correct myopia, but be sure to get checked out and rule out all contraindications before surgery.