Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1999-05-26
2000-01-11
Manuel, George
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
A61B 300
Patent
active
060128143
ABSTRACT:
In one embodiment, the present invention provides a method for measuring the movement of an individual's eye comprising the steps of: mounting a first infrared filter in a first eye of an individual, the first infrared filter filtering infrared light at a first wavelength; mounting a second infrared filter in the second eye of an individual, the second infrared filter filtering infrared light at a second wavelength; detecting infrared light of the first wavelength filtered by the first infrared filter by a first sub-array of photodetectors as the first eye of the individual rotates; and detecting infrared light of the second wavelength filtered by the second infrared filter by a second sub-array of photodetectors as the second eye of the individual rotates. The present invention also provides a contact lens comprising: a lens having a central clear zone; and at least one Fresnel ring circumferentially surrounding the central clear zone and filtering at least one wavelength of infrared light.
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Manuel George
University of New Mexico
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