Methods And Devices For Refractive Correction Of Eyes

A phoroptor for measuring aberrations of an eye, comprising:

• a wavefront sensing module for providing an objective measurement of aberrations of said eye, wherein said objective measurement includes at least a cylindrical axis, and a cylindrical power in a resolution finer than 0.25 D;
• 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 a cylindrical power and a cylindrical axis of said cylindrical lenses are dialed in according to said objective measurement of aberrations from said wavefront sensing module;
• wherein said subjectively determining a focus error involves subjective responses to a plurality of refractive corrections;
• 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.