How does conventional LASIK compare with Custom LASIK?
To understand Custom LASIK, one first needs to understand conventional LASIK. In conventional LASIK, we measure your prescription as if we are going to make your best-ever pair of glasses. That prescription is entered into the excimer laser, and it then reshapes your cornea so that you will see as if you are wearing those best-ever glasses. This technique has worked very well for hundreds of thousands of people since the dawn of LASIK back in the 1990s. In Custom LASIK, we take all of the same measurements as we do in conventional LASIK, however, we also measure your eyes with a device called an aberrometer. This device was originally developed to analyze the optical quality of high-powered telescopes but it has been adapted to do the same kind of analysis on the complete optical pathway of the human eye. What the aberrometer actually detects is an optical wavefront (custom treatments are sometimes called “wavefront driven”). This is accomplished by shining a low energy laser into the
