We offer CustomVue, wavefront guided treatment to almost all our patients. The standard treatments, while good, represent older, less precise ways of reshaping the cornea. Without CustomVue, we cannot utilize the iris registration program, which allows us to precisely align the laser treatment and uniquely identify our patients by the laser. This alignment ensures a great result and takes into acount the shifting of the pupil when the pupil gets smaller. I can tell you, the smoothness of the surface after the laser is applied, is truly remarkable. While our older laser was good, the VisX Star S4 with iris registrationis a quantum leap forward, so much so that we recommend it in most instances.