Eye Tracking

A research methodology that uses specialized hardware (such as infrared cameras) to measure where a person is looking on a screen or in an environment, recording the sequence and duration of gaze fixations. In accessibility research, eye tracking provides objective behavioral data about how users visually explore interfaces, video content, and documents, revealing attention patterns that may differ from what users self-report. It is particularly valuable for understanding how Deaf and Hard of Hearing viewers distribute attention across captioned media and how people with various visual or cognitive conditions interact with digital content.