Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Patent
1997-05-28
1999-04-27
Mai, Huy
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Subjective type
351246, 351210, A61B 302
Patent
active
058984747
ABSTRACT:
A method and apparatus are disclosed for using virtual reality for testing and quantifying visual information from the eye, the visual pathways, and the brain. Headgear configuration allows the patient to observe a field of view into which sequenced test stimuli are presented by an excitation device commanded by a computer. Interactive sensory feedback both to and from the patient enables computer-driven presentation and modulation of test stimuli to measure with precision such parameters as visual field performance, visual acuity, and color vision. Using the system allows the patient unprecedented freedom of movement of the head and body, thus minimizing or even eliminating the stress and fatigue common with conventional non-virtual reality visual field testing systems.
REFERENCES:
patent: 5461435 (1995-10-01), Rootzen et al.
patent: 5649061 (1997-07-01), Smyth
Massengill R. Kemp
McClure Richard J.
Mai Huy
Spinks Gerald W.
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