Excimer laser refractive corneal surgery (including PRK, LASIK, LASEK) has a history of more than 20 years, and clinical results prove that LASIK is a safe and effective way to correct myopia. However, to ensure the safety of surgery and improve the quality of surgery, three aspects must be mastered: strict mastery of surgical indications and contraindications To ensure the safety of surgery and good surgical quality, the first thing is to master the indications and contraindications of surgery, not the blind pursuit of profits and relaxation of indications. Experience has shown that the indications for excimer laser refractive corneal surgery: the patient must have a desire to remove the lens and reasonable postoperative expectations, age 18 years or older, relatively stable refractive status in the past two years (no significant changes in the degree), the parameters of the examination meet the requirements of surgery, no active inflammation and organic lesions, no systemic diseases restricted by surgery, contact lens wearers, stop wearing contact lenses for 2 weeks before surgery, these These conditions are the prerequisites for myopia laser surgery. Contraindications: Patient’s age does not meet the surgical requirements; eye examination parameters do not meet the surgical requirements; active inflammatory diseases such as acute conjunctivitis, keratitis, blepharitis, dacryocystitis and iritis; organic diseases such as retinal detachment, cataract, glaucoma, etc.; systemic diseases that limit surgery and affect postoperative recovery such as keloid, diabetes mellitus, etc.; female pregnancy and lactation; patient’s lack of knowledge or high expectation of surgery. Patients who lack knowledge of surgery or have high expectations; patients with psychological abnormalities such as depression. A comprehensive and systematic preoperative examination should be performed before surgery. Routine eye examinations include visual acuity examination, including naked eye distance and near vision, corrected visual acuity, intraocular pressure, eye axis, corneal topography, corneal thickness examination, dry eye screening, slit lamp examination, including conjunctiva, sclera, cornea, iris, anterior chamber, pupil, lens, etc.; after pupil dilatation, the peripheral lens and anterior vitreous should also be examined, fundus examination, refractive power examination, including comprehensive optometry, primary optometry, after pupil dilatation, and primary optometry on the day of surgery. Refractive power examination includes comprehensive optometry, primary optometry, post-dilated optometry and primary optometry on the day of surgery; external eye examination includes orbital, eyelid and tear sac examinations. In addition to routine examinations, preoperative wavefront aberration examinations are also required to collect iris data and night vision pupil data, so that these factors can be incorporated into the surgical design to maximize the patient’s night vision after surgery to reduce postoperative visual discomfort such as glare and halos and to meet the patient’s needs for night driving and work. It has been found clinically that there are patients whose incomplete preoperative examinations lead to missed diagnoses that cannot be addressed in a timely manner, resulting in postoperative complications. For example, the fundus examination must be fully dilated to check the peripheral retina, because the peripheral retina of highly myopic patients is prone to degeneration or dry holes, and if surgery is performed without timely detection, the patient is likely to suffer from serious blinding diseases such as retinal detachment after surgery. Improving the qualifications of doctors and medical institutions The doctors who perform excimer laser surgery must undergo strict training and examination and obtain an induction certificate for large medical equipment (PRK, LASIK) issued by the Ministry of Health before they can be qualified. Currently, some hospitals are blindly pursuing the volume of surgery, lowering the threshold of physician access and surgical indications, resulting in some undesirable consequences. For example, patients with large pupils and high order aberrations should use individualized surgery guided by wavefront aberration under iris recognition and positioning; patients with thin corneas should use Tissuesaving technology, which enables patients to retain more corneal tissue after surgery, making postoperative corneal biomechanics more stable and safe. Femtosecond laser can perform femtosecond laser flap making, which truly personalizes corneal flap making and further enhances safety compared to traditional micro corneal lamina; six-dimensional eye tracking guarantees accurate laser scanning and achieves point-to-point correction, fully guaranteeing patients’ surgical quality and postoperative visual quality. Advanced medical equipment is an important guarantee of safety, but there are “second, third and fourth generation machines” and “second-hand and third-hand” machines in the industry, and many old machines eliminated from large hospitals are used again by some hospitals, and the performance of these machines varies. These machines have varying performance, but their purchase cost is very low, and the price of surgery is also very low, they use below-cost prices to attract patients. The use of these machines for myopia surgery can easily cause postoperative complications such as poor corneal flap production, postoperative glare, and poor night vision. To ensure the quality of myopia laser surgery, one must strictly grasp the indications and contraindications for surgery, conduct a comprehensive and systematic preoperative examination, choose an experienced surgeon and a medical institution with advanced personalized treatment techniques, and most importantly, be a kind-hearted doctor who takes the maximum benefit of the patient as the highest guideline for the doctor’s practice.