Apparatus and method for objective quantitative assessment of human ocular coordination

Abstract

Apparatus for objective quantitative assessment of human ocular coordination is disclosed, including a first pair of transparent image filters (commonly as spectacles) which transmit different visual images, a projector to produce a pair of visual images; a viewing surface on which the visual images are separately viewed by a patient; controls to allow the patient to move the images relative to each other; and scales for quantitatively determining the spatial relationship between the visual images on the viewing surface which results from the movement by the patient. Also disclosed is a method for objective quantitative assessment of human ocular coordination by use of such apparatus. The apparatus may include a second pair of transparent image filters corresponding to the image transmitted by one respective filter of the first pair through which is projecting each of the pair of images onto the viewing surface. The filters may differ from each other in their ability to transmit colored light (such as complimentary colors such as red and green light) or in their ability to transmit polarized light. The invention is particularly useful is the assessment of phorias and ocular deviation, and eliminates subjective assessment of a patient's narration of his or her visual observations, especially in the examination of children or other inarticulate patients.

Dependencies are inferred from the claim text.