Are high-end and webcam eye trackers comparable?
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Eye Tracking has seen a lot of developments in the last decade. With the introduction of a pandemic and highend eye trackers being very costly there has been a surge of webcam eye trackers. In this paper, a literature overview of some high-end eye trackers and webcam eye trackers is created, as a review similar to this does not exist yet. Starting off, a list of eye trackers was made and after a filtering process, 10 eye trackers were selected for this overview. Each of these eye trackers were displayed within their own context. This showed that eye tracking is being used for many different purposes. High-end eye trackers and webcam eye trackers each have their own areas in which they perform better. The overview created in this paper provides a helpful guideline for the selecting of an eye tracker within a research context. In this paper, we criticize the results provided in webcam eye tracker papers, as they do not provide sufficient information to back up their results. This paper is finalized by recommending that future research could add an evaluation of testing results from the different eye tracker software.