Full femtosecond surgery mostly refers to the use of laser to change the corneal curvature to correct myopia, after the operation, patients may have postoperative infections, cone cornea, dry eye and other complications. 1. Postoperative infection: Infections are easily caused by incomplete disinfection before surgery or lack of attention to local hygiene after surgery, which may lead to keratitis, conjunctivitis, etc. Patients will have symptoms such as redness and congestion of the eyes, and they need to follow the doctor’s instructions to use levofloxacin eye drops for treatment after surgery. 2. cone cornea: full femtosecond laser surgery uses laser energy to cut corneal tissue, if the patient’s corneal thickness does not meet the surgical standard, cone cornea can occur, that is, because of the postoperative patient’s corneal thickness is thin, corneal bulging can occur, which will seriously damage the patient’s vision. 3. Dry eye: Because TFA cuts corneal tissue, it can damage the corneal nerves, causing patients to experience dry eyes, foreign body sensation, visual fatigue and other dry eye symptoms. It is recommended that patients after full femtosecond surgery follow the doctor’s instructions for care, regular review, and timely consultation when discomfort occurs.