Eye tracking refers to the process of monitoring and recording the movements of a person's eyes. There are several other terms that are often used interchangeably with the term eye tracking, such as gaze tracking, ocular tracking, eye movement analysis, and visual attention tracking. These synonyms are all related to the same process of measuring where a person is looking and how their eyes move across different stimuli. Eye tracking has become increasingly important in fields such as psychology, neuroscience, and marketing research, as it offers valuable insights into human behavior and cognitive processes. Regardless of the terminology used, eye tracking technology has opened up new avenues for understanding how we perceive and interact with the world around us.