초록 ▼

Illuminating light of selected wavelengths in the visible or infrared range is projected through the pupil of the eye onto the fundus, and the light reflected back and out through the pupil is detected and analyzed, preferably using the area of the optic disk for analyzing the retinal vessels overly

Illuminating light of selected wavelengths in the visible or infrared range is projected through the pupil of the eye onto the fundus, and the light reflected back and out through the pupil is detected and analyzed, preferably using the area of the optic disk for analyzing the retinal vessels overlying the optic disk. Specific wavelengths of illuminating light may be chosen for each blood component to be analyzed depending on the spectral characteristics of the substance being analyzed. The reflected image from the retina may be used to measure non-photoreactive blood components such as hemoglobin, and photoreactive components such as bilirubin. For the measurement of photoreactive components, images may be taken before and after, or during, illumination of the eye with light at wavelengths which will affect the photoreactive analyte, enabling measurements of the concentration of the analyte.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method for the detection of the concentration of a blood component in an individual comprising:(a) projecting light having selected wavelengths into an eye of the individual to illuminate the fundus;(b) detecting the light reflected from the fundus and forming an imag

[ What is claimed is:] [1.]1. A method for the detection of the concentration of a blood component in an individual comprising:(a) projecting light having selected wavelengths into an eye of the individual to illuminate the fundus;(b) detecting the light reflected from the fundus and forming an image of a portion of the fundus containing blood vessels;(c) analyzing selected wavelength components in the detected light from the blood vessels in the image to determine the concentration of a selected blood component.