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:
Aug. 15, 1995
Filed:
Apr. 25, 1994
Rudolph W Frey, Orlando, FL (US);
George R Downes, Jr, Orlando, FL (US);
Autonomous Technologies Corp., Orlando, FL (US);
Abstract
A biofeedback method and system provide eye position feedback to a patient. A first light source produces a ring of visible light centered about an optical axis at a perceived first position. A second light source produces a dot of visible light centered on the same optical axis as that of the ring at a perceived second position. As perceived by the eye, the ring's first position is closer to the eye than the dot's second position. The eye will further perceive the dot as being centered in the ring when the eye moves its visual axis into spatial and angular alignment with the optical axis shared by the dot and ring. An eye movement sensor detects a quantifiable amount of eye movement to generate an error signal. The error signal is supplied to the second light source to adjust the dot's appearance whenever the patient needs to realign the eye's visual axis with the optical axis of the dot and the ring. The invention may also include a third light source to produce a directing light at a visually resolvable angle from the dot in a direction that is approximately opposite to the direction of eye movement.