Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1992-04-10
1993-11-02
Arnold, Bruce Y.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351246, 128633, 128745, A61B 310, A61B 3117
Patent
active
052587886
ABSTRACT:
An ophthalmic measurement method is provided to accurately measure the composition and concentration of protein components in the aqueous humor of the anterior chamber, even when the anterior chamber also contains blood cells. Prior to measuring the autocorrelation function of the intensity of the scattered light from protein components, the anterior chamber is scanned by a laser beam controlled by a control section and the scattered light intensity thereof is measured to determine the location of blood cells by differentiating between light scattered by protein components and light scattered by blood cells. Via an optical scanner, the laser beam is then projected at a position in the anterior chamber from which there has been scattered light from blood cells has not been detected, and the autocorrelation function is measured while the laser beam is stationary.
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Adams Bruce L.
Arnold Bruce Y.
Kowa Company Ltd.
Parsons David R.
Wilks Van C.
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