System and method for testing retinal function

Details System and method for testing retinal function System and method for testing retinal function

2011-04-05

2011-04-05

Dang, Hung X (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

C351S246000

Reexamination Certificate

active

07918558

ABSTRACT:
A method of measuring retinal or visual pathway function comprises stimulating optokinetic nystagmus by presenting a visual stimulus to a patient; modifying a first parameter of the visual stimulus; modifying a second parameter of the visual stimulus; and using the modified visual stimulus to determine a threshold stimulus for optokinetic nystagmus; wherein the first and second parameters are selected from a group of parameters comprising a pattern for the visual stimulus, a width of the visual stimulus, a distance between the visual stimulus and the patient, a spatial frequency of the visual stimulus, a rate of change or temporal frequency of the test face of the visual stimulus, and a contrast between elements of the visual stimulus.

REFERENCES:
patent: 4493539 (1985-01-01), Cannon, Jr.
patent: 4861154 (1989-08-01), Sherwin et al.
patent: 4953968 (1990-09-01), Sherwin et al.
patent: WO 2004/112597 (2004-12-01), None

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