Myopia surgery mainly refers to laser surgery, the conditions are as follows: 1, the patient has the need to remove the lens, some patients because of occupational needs, such as the need to be a soldier, as a police officer, can be operated; 2, meet the age conditions, more than 18 years old, less than 55 years old, more than 55 years old may appear cataract; 3, myopia in recent years need to be within a certain growth range, such as annual growth ≤ 50 degrees; 4, myopia in 100 -If the corneal thickness is less than 480μm, myopic laser surgery is not recommended; 6. Patients without systemic diseases, such as cone cornea, eye infection history, rheumatic diseases, such patients are not recommended for myopic laser surgery.