An apparatus and method of use for tracking eye and head movement comprising (1) at least one optoelectronic array sensor or optical flow sensor formed of a plurality of optoelectronic sensor cells； (2) a body configured to support the optoelectronic array sensor with focusing means along with a source of light with collimating means in front of and in proximity to an eye of a user； (3) an optical focusing means to focus an image of the ocular surface of the user on the optoelectronic array sensor； (4) a focusing lens with a source of light； (5) a means to detect blinking； (6) a driver configured to receive signals from the sensor array to generate coordinate signals corresponding to changes in the position of the ocular surface relative to the sensor array； and (7) a means to detect user's additional input and gestures.
