Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1992-05-22
1995-01-17
Shafer, Ricky D.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351211, 351213, 128745, A61B 314
Patent
active
053829875
ABSTRACT:
The invention features a three path Maxwellian view optical system by which a stimulus test pattern may be ophthalmoscopically placed on small portions of the central 70.degree. of the retina of an eye. In alternative embodiments, different test patterns may be used to obtain data relating to flash ERG, pattern ERG (PERG), or flicker photomerry. The location of the stimulus test target on the retina may be tracked and recorded by a spectral perimetry system. The invention further provides a spectral sensitivity measurement system in which electrorctinogram (ERG) data is collected, transmitted, processed, and displayed or stored.
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Board of Regents , The University of Texas System
Shafer Ricky D.
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