Disclosed relates to a method and system of determining and recording eye motions. It is a distance measuring photoelectric proximity sensor fixed to the head, which senses the change in distance between the sensor and the eye when the eyelid is opening and closing to detect the eye open and close motion; with its small size and power saving features, it can be used as a head-mounted device for real-time management and long-term recording of eye usage, and is applied to human-machine interfaces to transmit signals generated by user's eye motions to control external components.
Method and system for detecting blink with proximity sensor