High Quality Content by WIKIPEDIA articles! An EyeTap is a device that is worn in front of the eye that acts as a camera to record the scene available to the eye as well as a display to superimpose a computer-generated imagery on the original scene available to the eye. This structure allows the user`s eye to operate as both a monitor and a camera as the EyeTap intakes the world around it and augments the image the user sees allowing it to overlay computer-generated data over top of the normal world the user would perceive. The EyeTap is a hard technology to categorize under the three main headers for wearable computing (Constancy, Augmentation, Mediation) for while it is in theory a constancy technology in nature it also has the ability to augment and mediate the reality the user perceives.