Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Patent
2000-02-28
2000-10-31
Manuel, George
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Subjective type
A61B 302
Patent
active
061391522
ABSTRACT:
An electronic eye depth testing method comprises a three dimensional cubic space displayed on a display screen, wherein the cubic space has a first image of a three dimensional object and a second image of a three dimensional object randomly placed within the cubic space. The first image is located at the intersection of two perpendicular horizontal planes and a vertical plane perpendicular to said two horizontal planes and the second image is located at the intersection of two perpendicular horizontal planes and a vertical plane perpendicular to said two horizontal planes. A subject to be tested for depth perception is directed to move the images into convergence in the center of the cubic space.
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Manuel George
Marsh Richard L.
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