Method for vision testing
AssigneeOptitest Ltd.
InventorAvraham Kushelvesky
Life of this patent
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Abstract
A system and method are disclosed for vision testing wherein visual test patterns displayed on a computer display are adjusted according to predetermined criteria with the distance between the subject being tested and the test pattern being monitored by computer to achieve computer control and adjustment of test object size.
Claims10
A method for automatically conveying to a computerized system information a distance between a test image on a computer display unit and a subject viewing the same display unit, comprising the steps of automatically measuring the distance between the test image on a computer display unit and a subject viewing the same display unit and conveying the measured distance to said computerized system.
A system for automatically conveying to a computer a distance between the subject and a test object on a computer display unit for use in a vision testing system, comprising a measuring device interfaced with the computer, wherein the distance measuring device is comprised of a receiver/transmitter controlled by the computer;
- a receiver/transmitter unit attached to the subject's body;
- and electronic timing circuits interfaced to and controlled by the computer.
Dependencies are inferred from the claim text.