Excimer laser treatment for myopia mainly refers to the application of excimer laser to correct myopia by cutting the stromal layer of the cornea and changing the radius of curvature of the cornea. These procedures can be divided into two categories: superficial and lamellar. Superficial lamellar resection is the treatment of myopia by laser cutting the superficial surface curvature of the cornea. Laminoplasty is a procedure in which a corneal flap is created with a corneal lamellar knife, then the flap is lifted and the excimer laser is used to cut the corneal stroma to achieve the treatment goal. As science advances, more procedures are now available, such as excimer laser epithelial flap subcorneal mapping, mechanical excimer laser epithelial flap subcorneal mapping, and anterior elastography laser corneal mapping. However, it is important to note that patients who undergo excimer laser treatment for myopia must be at least 18 years old and refractively stable. In addition, before the surgery, patients need to go to the hospital for a comprehensive examination, including visual acuity examination, intraocular pressure corneal thickness, retinal examination, etc. In addition, there are certain contraindications to excimer laser surgery, such as combination of severe dry eye, cone cornea or tendency to cone cornea, severe corneal disease, recurrent viral keratitis, high intraocular pressure disorder, severe systemic connective tissue disease and other myopic patients are not suitable for laser treatment. In addition, there are some complications of excimer laser treatment surgery, such as refractive regression, dry eye, and complications of the cornea, so you should pay attention to eye hygiene and good maintenance after surgery to prevent complications.