You shall thick twice before you take the laser eye surgery. Although the surgery can correct vision for patient, it is really risks for the surgery. In details, Almost all of people may suffered from dry eyes after the surgery. Most surgeon said that it is normal to have dry eyes after the surgery and it will go away several months. However, some people suffered from permanent dry eyes after the surgery. Besides, not all laser eye surgery can be success. If the laser removes too little tissue from your eye, you can't get clear vision as you expected. Also, some people may overcorrection from the surgery. And the removes tissue from your eye (overcorrection) is difficult to fix again. At last, Astigmatism can also be caused by the exam.