AN INSTRUMENT AND A METHOD FOR MEASURING THE ABERRATION OF HUMAN EYES

摘要

The present invention discloses an apparatus and a method for measuring aberrations in the human eye by utilizing the tracking of rays of light to measure the aberration in the human eye. The displacement of the incident light with respect to the ideal point position in the eye is corrected by changing the incident angle of the incident light so as to superimpose with the ideal light point. The variation of the incident light is analyzed by least mean square procedure so as to obtain the two-dimensional wave aberration profile and the magnitudes of independent aberrations. The apparatus comprises light sources, optical system, means for changing the incident position of the incident light, means for changing the incident angle of the incident light, and computer control means.