Ocular testing method and apparatus
OwnerRobert S. Quandtinventor
Life of this patent
Estimating the term…
Abstract
A method and apparatus for detecting changes in body chemistry, for example, glycemia, is disclosed in which a beam of light is projected into and through the aqueous humor of the patient's eye. An analyzer positioned to detect the beam on its exit from the patient's eye compares the effect the aqueous humor has on said beam against a norm. An excess or deficiency of glucose present in the aqueous humor produces a corresponding positive or negative variation in the exiting beam and thereby indicates a hyper or hypo glycemia condition in the body chemistry of the patient being tested.
Claims11
Apparatus for detecting changes or variations in a patient's body chemistry comprising means for projecting a beam of plane polarized light through the aqueous humor of a patient's eye, the aqueous humor containing a chemical which rotates the polarization axis of the light beam as it passes therethrough in proportion to the amount of said chemical present in the aqueous humor, and an analyzer positioned to be impinged by said exiting beam of light, said analyzer including means for measuring the angle through which the polarization axis of the light beam has been rotated.
Apparatus for detecting a hyper or hypo glycemic condition in the aqueous humor of a patient's eye comprising a housing having a reference member to which a patient aligns his eye, a light source spaced from said reference member, a lens system for directing a beam of light from said light source to the reference member so as to enter a patient's eye aligned therewith, pass through the aqueous humor and exit from the eye, and detector means positioned to receive the light beam as it exits from the patient's eye, the light beam being changed by changes in the glucose content of the aqueous humor as it passes therethrough so as to differently impinge upon the detector means, said detector means including indicator means which respond to different impingements of the light beam thereon so as to indicate a hyper or hypo glycemic condition.
A method of testing for a hyper or hypo glycemic condition in the human body comprising the steps of quantitatively measuring the glucose content of the aqueous humor of a patient's eye by directing a beam of light through the aqueous humor, the light being displaced from a norm consequent to an excess or deficiency of glucose present in the aqueous humor, and detecting the amount of displacement of said light beam as it exits outwardly from the eye.
Dependencies are inferred from the claim text.