Dr. Zimm will determine if a patient falls within LASIK treatment ranges at the time of the free screening. Ultimately, the two-hour LASIK work-up examination with comprehensive corneal scanning will determine if a patient is truly a good candidate or not. Non-candidates may have corneas which are too steep, too thin, etc. Dr. Zimm puts safety at the top of his list of concerns, and if he feels for any reason that you are not a good candidate for the procedure he will insist that you do not have LASIK.