Patent ID: 9675248
Date: 2017-06-13
CPC Classifications: A61B

Claim:
1. An apparatus for fixation measurement, the apparatus comprising: an image projector configured to project a stimulus onto one or more eyes of a patient via a beam splitter, wherein the stimulus is projected onto one or more retinas of the one or more eyes of the patient; and one or more image sensing devices disposed conjugate to the one or more retinas, wherein the one or more image sensing devices are configured to capture a reflected image including light reflected from the one or more retinas in response to the stimulus, wherein the reflected image includes a reflected stimulus comprising one or more of: the stimulus as perceived on the one or more retinas or the stimulus as transformed by a curvature of the one or more retinas, and wherein differences between the stimulus and the reflected stimulus indicate a fixation of the one or more eyes.