Patent ID: 9345399
Filing Date: 2016-05-24
CPC Classification: A61B,G01M,G02C

Claim Text:
1. A phoroptor for measuring aberrations of an eye, comprising: a wavefront sensing module for providing an objective measurement of wave aberrations of said eye, wherein said objective measurement does not involve responses from a patient, and wherein said objective measurement includes at least a cylindrical axis, and a cylindrical power in a resolution finer than 0.25 D; and a phoroptor module with a plurality of spherical lenses, cylindrical lenses and an acuity chart for subjectively determining a focus error of said eye and for a refractive prescription of refractive errors of said eye; wherein said phoroptor module is configured to: i) dial in a cylindrical power and a cylindrical axis of said cylindrical lenses according to said objective measurement of said cylindrical axis and said cylindrical power from said wavefront sensing module, wherein said cylindrical power and cylindrical axis of said cylindrical lenses are controlled with said resolution finer than 0.25 D; ii) subjectively determine said focus error involving subjective responses of the patient to a plurality of refractive corrections, while said cylindrical axis and said cylindrical power of said cylindrical lenses are dialed in according to said objective measurement; and wherein said refractive prescription of refractive errors comprises said cylindrical power and said cylindrical axis that are objectively measured from said wavefront sensing module, and said focus error that is subjectively determined from said phoroptor module.