Concentration determining method e.g. for determining blood glucose concentration in aqueous fluid and or tissue of eye, involves having optical radiation for production of RAM illumination by reciprocal effect

摘要

The method involves having an optical radiation for the production of RAM illumination by reciprocal effect with a material along a path of rays (5) in a chamber (1), focused in a range of an eye (2) and along a detection ray path (8). Incident radiation is detected by detection signals, which is produced by RAM on a reciprocal effect of the radiation with the material. Detection paths within range of a cornea (11) of the eye do not overlap. A function of the detection signals is determined for the concentration of the material. An independent claim is included for a device for the determination of a concentration of a material in a chamber.