Much like any other part of your body, your eyes can change over time. The underlying refractive errors (i.e. myopia, astigmatism, hyperopia) that you had prior to your LASIK procedure can progress over time and can make your vision less than crisp. Generally speaking, the possible need for an “enhancement” procedure to sharpen the vision increases about 1% per year after the procedure. The good news is that laser eye surgery can be repeated as long as your surgeon determines that you are a good candidate for an enhancement procedure.