A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
26/197, 88/22, 8
A61B 3/10 (2006.01) A61B 3/00 (2006.01) A61F 9/00 (2006.01) G02C 7/02 (2006.01) G02C 7/14 (2006.01)
Patent
CA 2023875
A pair of rotatable optical image deflector assemblies is disclosed which are detachably mounted via an adapter bracket to a conventional eye testing apparatus. Each optical image deflector assembly has a fixed light reflecting optical element, and a pivotal reflecting optical element. The optical image deflector assembly directs light onto a peripheral area of a visually sensitive or functional area of the retina which is normal to the central field of the retina. The pivotal optical element scans a pre-set field expanding test chart and projects an image thereof to the visually sensitive or functional area of the retina. The optical image deflector assembly is usable in making prismatic eye glasses to expand the normal central field of view of a person suffering from retinitis pigmentosa or hemianopia. The prismatic eye glasses refract images from a field outside the normal central field of view within and along the peripheral edge of the visually sensitive central area of the retina for expanding the normal central field of view.
Inwave Optics Inc.
Kirby Eades Gale Baker
LandOfFree
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