Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1999-11-04
2000-08-08
Manuel, George
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
A61B 310
Patent
active
060991267
ABSTRACT:
An interactive system and method for testing the sunlight sensitivity of a subject is provided herein. The system includes a computer generated imaging device for displaying a number of realistic situational scenes on a viewing screen situated opposite an observation port. The subject first views the scenes under a variety of lighting conditions created by an illumination source and indicates a level of visual discomfort through actuating a response indicator. The test is then repeated using a series of lens filters inserted between the observer and the screen and a set of new responses is recorded wherein the lens offering the most comfortable or pleasing protection against the light is determined for the subject.
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