Any surgery risks, so does a PRK surgery. Complicating diseases can occur after a myopic laser surgery. Some may manifest the symptom of dazzle, namely seeing a light spot as a light ball or halation in the evening, which has something to do with slight hydroncus of cornea tissue after the surgery and will gradually diminish with time passing by. Many people restore their vision the day after the surgery, but their vision fluctuates several days later. Some people get a clear vision little by little, generally it is stable after two weeks, and the ultimate recovery time is three to six months. After a PRK surgery, avoid going to the places where have much smoke, do not eat pungent food, do not apply cosmetics around the ocular region in case of tiny granule. Periodical examination of eyes after the surgery is necessary.