The purpose of this paper is to introduce wavefront guided laser in-situ keratomileusis (Wavefront guided LASIX or custom LASIX), a relative new procedure in corrrecting disorders of refraction. This procedure was introduced for being used in correcting disorders of eye refraction. This procedure was intrduced for being used in 1998. This procedure can repair the distrurbance of eye refraction,…
Minimal visual angle determine visual acuity. A Landolt Ring, which specified for minimal visual angle measurement, have been identified some eumetrop subject that have less tha 1 minute value. Some of that subject have a supernormal visual acuity.