Your eye constantly darts around a scene (saccades) shifting visual attention from point to point. The points of pause and visual attention may arise subconsciously, say due to a sudden movement or an interesting shape, but you can also consciously control your eye gaze.
Eye tracking hardware can be used to measure the location and duration of eye gaze. Eye gaze can then be used to measure the salience of different areas of a screen or web page during evaluation or as part of the control of an application. The latter is especially helpful for accessibility of those with motor impairments.
Also known as: eye gaze data
Used in glossary entries: accessibility, saccades