An apparatus generally including a first housing and a second housing is disclosed. The first housing may have (i) one or more first clips configured to removably secure the first housing to a frame of eyeglasses, (ii) at least one sensor configured to sense a response of a user wearing the eyeglasses and (iii) a transceiver configured to (a) receive an image in a receive message from external of the apparatus and (b) transmit the response in a transmit message to external of the apparatus. The second housing may be (i) attached to the first housing, (ii) positionable before a lens opening of the eyeglasses on a side of the lens opening opposite the user and (iii) configured to display the image to the user through the lens opening.