As one of the methods to correct refractive errors (including myopia, hyperopia and astigmatism), corneal laser surgery is gaining more and more popularity among myopic friends due to its advantages such as precision, convenience and quick recovery. Looking at the global trend of myopic surgery development, corneal laser surgery has entered the era of multiple surgeries going hand in hand and developing together, each with its own unique advantages and possible shortcomings. What exactly is laser surgery, who is suitable for it, and what are the contraindications? Let’s first understand the classification and characteristics of corneal laser surgery. Corneal laser surgery is usually divided into the following two categories: lamellar surgery and superficial surgery. Slab surgery usually refers to excimer laser in situ keratomileusis (LASIK and femtosecond LASIK), which uses a mechanical knife or femtosecond laser to assist in the creation of the corneal flap, and also includes a procedure where the corneal stromal microlens is completed and removed using only a femtosecond laser (SMILE). It is the most mainstream procedure with mild pain symptoms and fast recovery of vision. It is usually possible to restore normal vision or best corrected vision the day after surgery without affecting normal life. Superficial surgery refers to the mechanical, chemical or laser removal of the corneal epithelium, or mechanical fabrication of the corneal epithelial flap followed by laser cutting on the surface of the anterior corneal elastic layer and its underlying corneal stroma, including excimer laser refractive keratomileusis (PRK), excimer laser subepithelial keratomileusis (LASEK), mechanical method-excimer laser subepithelial keratomileusis (Epi- LASIK) and transepithelial excimer laser keratomileusis (TPRK). Superficial surgery eliminates the need for a flap and avoids the associated surgical risks. However, postoperative pain is more pronounced, recovery and medication times are longer, and the likelihood of postoperative Haze is relatively high. Superficial surgery is generally suitable for special occupational needs with low degrees, such as athletes with strong confrontation and military police.