Method and apparatus for determining electrical activity in the

Details Method and apparatus for determining electrical activity in the Method and apparatus for determining electrical activity in the

1994-05-24

1996-01-16

Sikes, William L.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351205, 351246, A61B 310

Patent

active

054852293

ABSTRACT:
Apparatus and method for measuring retinal function in discrete regions of a retina includes selecting a discrete region of a retina having ganglion cell axons extending therefrom and to an optic nerve head and directing a linearly polarized beam of light on a probe region of retinal nerve fibers proximate the optic nerve head. Thereafter the discrete region is stimulated with light. Apparatus is provided for detecting light reflected from the probe region, before, during and after stimulation for producing an electrical signal corresponding to the amount of shifted linearly polarized light as a function of time.

REFERENCES:
Tasaki, et al. Changes in Fluorescence . . . Proc Natl Acad Sci vol. 61 pp. 831-888 (1968).
Cohen et al. Light Scattering and Birefringence . . . Nature vol. 218 pp. 438-441 (1968).
Hill et al. Opacity Changes in Stimulated . . . J. Physiol vol. 108 pp. 278-281 (1949).
Hill, The Effect of Stimulation On . . . J Physiol vol. 111 pp. 283-303 (1950).
Schmitt, Morphology in Muscle and Nerve . . . unknown text pp. 68-77 (1950).
Bryant et al. Changes in Light Scattering . . . J. Cellular Comp Physiol vol. 40 (1952).
Cohen et al; Changes in Axon Birefringence . . . J Physiol V211 pp. 495-515 (1970).
Cohen et al, Changes in Light Scattering . . . J Physiol V212 pp. 259-275 (1971).
Cohen et al. Analysis of the Potential . . . J Physiol V218 pp. 205-237 (1971).
Cohen et al Changes in Light Scattering . . . J Physiol V224 pp. 701-725 (1972).
Ross et al Changes in Absorption, . . . J. Membrane Biol V33 pp. 141-183 (1977).
Hemenger, Birefringence of a Medium . . . Applied Optics vol. 28 No. 18 pp. 4030-4034 (1989).
Weinreb, et al. Histopathologic Validation . . . Arch Ophthalmol vol. 108 pp. 557-560 (1990).
Stepnoski, et al. Noninvasive Detection . . . Proc Natl Acad Sci USA vol. 88 pp. 9382-9386 (1991).
Dreher, et al Spatially Resolved . . . Applied Optics vol. 31 No. 19 pp. 3730-3735 (1992).
Cohen et al: Evidence for Structural . . . Physol Soc pp. 85-86P Nov. 10-11, 1967.

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