Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Patent
1985-12-31
1989-05-02
Kyle, Deborah L.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With antiglare or shading
351232, A61B 302, G02C 712
Patent
active
048263087
ABSTRACT:
A method and system are provided for detecting, characterizing and monitoring eye diseases and, particularly, optic nerve diseases, by determining the difference in relative brightness sensed by the two eyes. The method utilizes eyeglasses having a pair of cross-polarizing lenses selectively adjustable for blocking or admitting light into each eye. The patient observes an illuminated test object while looking through the eyeglasses at maximum luminance. By adjusting the relative polarization of the lenses for the eye in which the test object appears the brightest, while occluding the other eye, the amount of brightness sensed by that eye can be compared to the other eye. If there is a disparity in brightness-sense between the eyes within certain pre-established ranges, the nature of the eye disease can be detected and specifically characterized, and its progression or resolution can be monitored.
REFERENCES:
patent: 3074397 (1963-01-01), Gernet
patent: 3944346 (1976-03-01), Shindler
patent: 4145123 (1979-03-01), Krahn et al.
patent: 4188097 (1980-02-01), Holladay
patent: 4264154 (1981-04-01), Petersen
"Amsler Charts", The Optician, vol. CXXII, pages XVII and 384, Nov. 2, 1951.
Article by Alfredo A. Sadun & Michael Wall entitled "Threshold Amsler Grid Testing: Cross Polarizing Lenses Further Enhance Yield" published in Archieves of Ophthalmology, vol. 104, pp. 520-523 (1986).
Article by Mainster & Dieckert entitled "A simple Haploscopic Method for Quantitating Color Brightness Comparison" published in American Journal of Ophthalmology, vol. 89, No. 1, pp. 58-61 (1980);
Article entitled "Brightness-Sense and Optic Nerve Disease" published in Archives of Ophthalmology, vol. 103, pp. 39-43 (Jan., 1985).
Carone Michael J.
Kyle Deborah L.
University of Southern California
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