Aspheric optics, theoretical considerations

Abstract

AbstractSpherical aberration is the largest higher‐order aberration in the human eye and it is the only aberration with a nonzero population average. Furthermore, in contrast to other aberrations such as, e. g., coma, spherical aberration can be corrected by rotationally symmetric optical surfaces, so called aspheric optics. These facts form the basis for an increasing number of both IOL’s and contact lenses which manipulate the spherical aberration in the eye. This talk will give a background on spherical aberration and state of the art aberration measurements in the human eye. Different aspects of ocular spherical aberration will be reviewed and the implications and possible visual benefits of correcting, or even inducing, spherical aberration will be discussed.