Patent ID: 7311402
Filing Date: 2007-12-25
Classification: A61B

Abstract:
1. An eye optical characteristic measuring apparatus, comprising: a light source part for emitting a light flux of a specified wavelength; an illumination optical system for illuminating a minute area on a retina of a subject eye with the light flux from the light source part; a light receiving optical system for receiving a part of a reflected light flux which is the light flux emitted from the light source part and reflected by the retina of the subject eye, through a conversion member for converting it into at least substantially 17 beams; a light receiving part for receiving a received light flux guided by the light receiving optical system to form signals; and an arithmetic part for obtaining wavefront aberrations of the light flux incident on the light receiving optical system and a spot diameter of the received light flux on the basis of the signals from the light receiving part, wherein the arithmetic part obtains a point spread function based on a signal from the light receiving part, and estimates crystalline lens scattering and retina scattering by comparing the obtained point spread function with a point spread function obtained from the wavefront aberrations of the subject eye which are obtained on the basis of the signals from the light receiving part.