Patent ID: 8919960
Filing Date: 2014-12-30
Classification: A61B,G06T

Abstract:
1. A device for detecting high order aberrations in ocular properties of a patient's eye, said device comprising: an array of infrared light sources comprising a central infrared light source and at least one eccentrically positioned infrared light source that can be individually activated to produce infrared light; an image sensor that detects infrared light and produces an image based upon said detected infrared light; and an optical beam splitter that is positioned to co-axially align a detection path from said patient's eye to said image sensor and an infrared illumination path from said central infrared light source to said patient's eye such that said infrared light from said central infrared light source is directed into said patient's eye, focused to a point on said patient's retina by optical elements of said patient's eye, reflected and scattered by said patient's retina and emitted from said patient's eye; wherein said image sensor receives infrared light reflected and scattered from said patient's retina and produces a photorefractive image of said patient's retinal reflex based on a spatial distribution of said infrared light received through an entrance pupil of said image sensor that is dependent upon any high order aberrations present in said ocular properties of said patient's eye; and wherein eccentrically illuminated photorefractive images of said patient's retinal reflex are produced by selectively activating an eccentrically positioned infrared light source in said array of infrared lights sources and detecting a distribution of said infrared light received through said entrance pupil of said image sensor in response to activation of said eccentrically positioned infrared light source.