In about one minute, the 3-D Wave can get a measurement of your glasses prescription, map the curvature of your cornea, and diagnose distortions in the optics of your eye. With this information the optometrist is able to determine if the patient is a good candidate for refractive surgeries such as LASIK, PRK, or PreLex. In addition, data gathered from the 3-D Wave can be used in the diagnosis and management of corneal curvature abnormalities such as Keratoconus. This instrument also streamlines the process of determining the final glasses prescription, which means less time spent answering questions such as, “Which is better, one or two?”