The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 2005
Filed:
Aug. 15, 2003
Mark J. Rice, Jacksonville, FL (US);
Joe W. Woods, Lexington, KY (US);
Wilson Routt, Lexington, KY (US);
Junli Ou, Lexington, KY (US);
Mark J. Rice, Jacksonville, FL (US);
Joe W. Woods, Lexington, KY (US);
Wilson Routt, Lexington, KY (US);
Junli Ou, Lexington, KY (US);
Fovioptics Inc., Santa Clara, CA (US);
Abstract
Blood glucose concentrations are measured by non-invasive methods and apparatus using visual pigment bleaching in conjunction with psychophysical methodologies. Bleaching light of selected wavelengths is projected through the pupil of the eye of an observer onto the fundus to bleach visual pigments in the eye. The observer's psychophysical response to a visual stimulus is then measured to obtain information regarding the rate of regeneration of the visual pigments. From the rate of pigment regeneration, blood glucose concentrations are measured accurately. The psychophysical methodologies that may be used with the invention include visual acuity tests and color-matching tests.