Eye-tracking
During fixation our eyes are not completely stable, but make fine movements moving the image over a small area of the retina. Using the AOSLO we are able to record the unique photoreceptor mosaic from an individual. Due to the scanning nature of the instrument, we are able to measure eye movements with very high spatial (less than the diameter of a single cone) and temporal (~1 Hz) resolution, via the motion distortions induced in the images. With knowledge of the photoreceptor mosaic and the pattern of eye movements we can infer the spatio-temporal light signal to individual photoreceptors. These measurements give us insights in to the neural mechanisms underlying the control of eye movements.