The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2001
Filed:
Aug. 30, 1999
Gerald Horn, Deerfield, IL (US);
Health Performance, Inc., Oak Forest, IL (US);
Abstract
A method for detecting the presence of eye disease in a human eye. A test subject is presented with a fixation target positioned on a colored planar surface. The test subject focuses a test eye on the fixation target and positions the test eye a sufficient separation distance from the fixation target and aligns the test eye relative to said fixation target so that the test subject's central and peripheral visual health can be tested. Additional marks are presented on the planar surface for detection by said test subject using the peripheral vision of the test eye. The additional marks are primarily the same level of black-white contrast as the planar surface but different in hue to create color contrast symbols, and are presented within the field of vision of an eye not afflicted with the disease for which testing is being conducted. In this way, the presence of eye disease can be detected if the additional marks are not visible to the test subject.