Patent ID: 7058212
Filing Date: 2006-06-06
Classification: A61B

Abstract:
1. An arrangement for determining the two-dimensional distribution of fundus pigments, particularly of the macular pigment xanthophyll, comprising: a unit for a single monochromatic illumination or a unit with an optical filter arranged in front of it being provided for a single narrow-band illumination of the retina with light of a wavelength region containing precisely or approximately the wavelength λ of the absorption maximum of the fundus pigment; image processing unit for recording and evaluating the image reflected by the retina being arranged in an extended observation beam path; and a central controlling and evaluating unit being provided for selecting site-specific areas for the optical density to be determined and for the selection and calculation of reference values and for determining the optical density of the respective fundus pigment and for numerical or graphic output of the results, wherein said central controlling and evaluating unit being connected with the illumination unit, the filter, observation optics and the image processing unit.