The risks of keratoconus surgery include intraoperative risks (off-center cutting, etc.) and postoperative risks (corneal infection, etc.). 1. Intraoperative risks (1) Corneal flap: Corneal flap may be free, broken, mutilated, etc., which may affect the healing of the cornea during the operation. (2) Off-center cutting: the center of cutting deviates from the visual center by more than 0.5mm, causing problems such as irregular corneal astigmatism in postoperative patients. (3) Corneal stroma over-hydration: the corneal stroma absorbs too much water, the surface is uneven, swollen, etc., and the postoperative refraction shows under-correction or over-correction. 2. Postoperative risks (1) Prolonged healing of the corneal epithelium: increases the risk of infection, which may result in more serious refractive error as time goes by. (2) Corneal infection: may cause some degree of vision loss, and in serious cases, may cause endothelitis. It is recommended to go to a specialized hospital and under the operation of a professional doctor to perform keratoconus surgery, and follow the doctor’s instructions for postoperative follow-up to prevent the emergence of serious complications. If the patient experiences any discomfort after the surgery, he/she needs to seek medical attention in time for relief.