Laser myopia surgery, now entering the femtosecond era, is usually considered to be either a full femtosecond procedure or a half-femtosecond procedure. In the earlier years, excimer lasers were still mostly used. In keratoconus surgery, the excimer laser or femtosecond laser is used to form a flap on the cornea, and after the flap is lifted, the laser is considered to cut the corneal stroma, which changes the corneal refractive index, and then the flap is reset. After the surgery, good vision is usually restored. Since everyone’s eyes have different refractive errors and different corneal surface morphology, if you want to undergo myopic laser surgery, you must go to an outpatient clinic to undergo a detailed examination before you can determine which surgical procedure is suitable for you. At present, compared with excimer laser, femtosecond laser has high predictability and precision, and the reset is more accurate, which reduces the risk of surgery and makes the quality of vision more perfect. But after all, it is also a surgery, there may be a variety of surgical complications, clinically more common, or postoperative dry eye, postoperative vision regression, corneal infection, night glare and so on. It is recommended that after surgery, patients should follow the doctor’s instructions to use eye drops and have regular hospital checkups. Usually also pay attention to develop good eye habits, if you find any abnormality timely review.