Driven by the need for military conscription, civil service applications, medical examinations for higher education and other needs for lens removal, more and more patients are coming to hospitals for myopic laser surgery. Before the surgery, patients need to make various preparations, especially to choose the most suitable surgery method for them. Current myopia laser surgery is performed by excimer laser cutting the cornea, which results in a change in the shape of the cornea to correct myopia. Depending on where the laser cuts the cornea, it can be divided into two categories: superficial cutting (PRK, LASEK and Epi-LASIK) and deep cutting (LASIK, SBK and femtosecond LASIK). superficial cutting means that the excimer laser is used to directly cut the stromal tissue on the surface of the cornea to change its curvature. The corneal thickness will be thinned accordingly after surgery, but the structure is still intact; deep cutting uses a microkeratome or a more precise femtosecond laser to create a corneal stromal flap, and then the excimer laser cuts the deep corneal stroma and resets the flap, the degree of corneal thickness thinning after surgery is the same as surface cutting, but the structure of the cornea will be divided into two layers after deep cutting, which cannot be completely healed between them. If the future severe trauma, it will leave the hidden danger of flap displacement. Among superficial cutting, PRK is the earlier technique, because the number of myopia that can be treated is very limited, and the postoperative pain is severe, the recovery of vision is slow, and there are more complications, so it has basically been eliminated; Epi-LASIK needs to rely on a very stable micro epithelial knife, and the current epithelial knife can not meet the requirements of surgical stability, and there are more complications, because it has not been widely used; LASEK is the mainstream of superficial cutting. currently the mainstream procedure for superficial cutting, which involves manual fabrication of a corneal epithelial flap after soaking in low-concentration alcohol, and laser cutting to restore the intact epithelial flap and protect the cornea. The biggest advantage of LASEK surgery is that the integrity of the cornea is maintained and there are no worries even if trauma occurs in the future; secondly, LASEK is safer for patients with thinner corneas and higher myopia, which can preserve a thicker corneal stromal bed and avoid the occurrence of cone corneas; in addition, the percentage and duration of dry eyes occurring after LASEK surgery are much less with LASIK; and For an experienced refractive surgeon, the success rate of making corneal epithelial flap can reach 100%, so there is almost no possibility of complications unless there is an accident during laser cutting; finally, the postoperative reaction of LASEK is the lightest among superficial cutting, and the recovery of vision is the fastest, generally reaching 0.8 or more in about a week. Of course, compared with deep cutting, superficial cutting has its drawbacks, such as the destruction of the anterior elastic layer and the risk of corneal haze after surgery; short-term discomfort such as tearing, eye soreness, photophobia and foreign body sensation after surgery; relatively slow recovery of vision, which takes about a week; longer time to order hormonal eye drops after surgery, which takes about 2 months. In the long run, the long-term effect of LASEK is the same as that of femtosecond LASIK, and with the absolute advantage of maintaining corneal integrity, LASEK should be the most effective and safest procedure in excimer laser surgery. After more than two decades of development. Excimer laser treatment for myopia is now a mature and reliable technology, but we should also be rational about the results it can achieve and the potential risks it may pose. Combining one’s own characteristics and needs, choosing the most appropriate surgical procedure to achieve both the effect of removing glasses and to ensure long-term safety is a matter that patients need to consider carefully before surgery. Optimized superficial cutting surgery, which balances the effectiveness of vision restoration and long-term safety, deserves to be the first choice for myopia surgery patients.