Patent ID: 7762666

Claim:
A device for measuring and correcting aberrations of an eye and for use with an ophthalmic apparatus for measuring and correcting optometric parameters, the device comprising: a laser unit for providing parallel light for a retina of the eye; a wavefront sensing unit for receiving and processing the light reflected by the retina so as to generate wavefront data of wavefront aberrations based on a shift of the light; an aberration correcting unit, connected only to the wavefront sensing unit, for correcting a difference between the wavefront data based on the data from the wavefront sensing unit by a physical movement so as to turn incident light into the parallel light; an optometric testing unit for testing and verifying the wavefront aberration-corrected optometric parameters of the eye; and a beam-splitting unit disposed between the laser unit, the wavefront sensing unit, the aberration correcting unit and the optometric testing unit, the beam-splitting unit being used for providing optical path structures configured in such a way that the wavefront sensing unit and the optometric testing unit form aplanatic structures.