There may be side effects of laser eye surgery. Common side effects include pain, delayed corneal epithelial healing, and poor refractive correction. 1. Pain: Pain at the surgical site can be prevented by applying antibiotic eye ointment such as erythromycin eye ointment to prevent infection, and painkillers such as painkillers can be taken if necessary. 2. delayed healing of corneal epithelium: the corneal epithelium fails to heal after 3 to 5 days after surgery, which may lead to an increased risk of infection, antibiotics such as levofloxacin eye drops and other eye drops can be used, and corneal contact lenses can be worn to promote the healing of corneal epithelium. 3. Poor refractive correction: the corrected visual acuity is lower than the expected corrected visual acuity, there is refractive undercorrection or refractive overcorrection, some of which can be slowly recovered over time, while severe cases may require 2 surgeries to correct. There may be other side effects of laser surgery on the eyes, such as early visual ill-health, diffuse interlaminar keratitis, etc. Regular review should be done after the surgery to determine the recovery of vision. All of the above medications should be used under doctor’s supervision. Patients are advised to undergo regular check-ups and to seek early treatment if there is any discomfort.