In the event that post-Lasik complications occur, they are often resolved with medication, laser re-treatments or enhancements. Permanent vision loss is a slight possibility if the vision is degraded as a result of the surgery.
The normal healing period for Lasik is six months. Most complications will resolve themselves after this period of time. If the complications are serious, six months may seem to far away. Another option is to get a second opinion from another Lasik surgeon. They may have another idea as to how you can resolve your complications.
There is an organization that is designed to specifically address the needs of those patients who have suffered complications from Lasik. The CSQRA, Council for Refractive Surgery Quality Assurance), is designed to help patients and can be found at www.complicatedeyes.org.
There is also a possible need for touch-up surgery after the initial surgery. On such factor that requires this is that if your eyes were particularly bad, you may not be satisfied with the results and need a touch-up surgery. Your surgery may result in some complications depending on the severity of your vision before surgery. Touch-up surgery is not highly unusual.
One guarantee about surgery is that there are no guarantees. Everybody heals differently and some take longer than others.