Laser surgery, if it refers to refractive laser surgery, may lead to problems such as keratitis, dry eye, refractive error and regression of vision. 1. Keratitis: Since the surgical site is inside the eye, there may be a probability of infection and keratitis. 2. Dry eye: Laser surgery may damage the lacrimal glands and patients feel tired, dry and even soreness in the eyes. 3. Refractive error: In the process of surgery, refractive error may occur due to operational errors, and then a second surgery may be required. 4. Vision regression: After the operation, the vision may regress to the previous one. Refractive error laser surgery is not a radical cure for vision problems, if you find discomfort after surgery, you must go to a regular hospital to find a professional doctor for treatment.