Abstract: A prismatic lens (10) having a plurality of integral prisms (60), wherein the prisms (60) surround a central non prism area (90) in an apex portion (68) in-base (62) out orientation. Each prism (60) is adjacent or contacting two other prisms (60) to encompass the non prism area (90). The present invention may include a conical, spherical or aspheric lens member (30). Further, the plurality of prisms (60) may be disposed on an object side (12) or an image side (14) of the lens (10), so that a corrective prescription curvature may be formed on the lens member (30) on either the object (12) or image (14) side of the lens (10).

Abstract: 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.

Abstract: 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.

Abstract: A pair of rotatable optical image deflector assemblies are 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 an eye, and scans an arcuate portion of the area upon pivotal movement of the pivotal optical element.