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Limitations Of Eye Tracking Essay

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6. Limits of eye-tracking Eye tracking has a lot of uses and benefits, but we cannot ignore the fact that it also has a few limitations. We are going to analyze some of these possible negative aspects. Below are some of the disadvantages we have observed. i. Eye tracking can be misleading, because it does not capture peripheral vision. Eye tracking records and displays fixations in the small part of our visual field that produces the sharpest vision. It does not record peripheral vision, which makes up 98% of our visual field. This is significant, because we use peripheral vision to choose where to fixate our fovea next. This is why eye tracking visualizations can be misleading. For example, in a heat map, some assume users did not see areas without hot spots at all. It is important to recognize that the eye tracking fixations, or hot spots, do not represent everything …show more content…

Another limitation is that participants need to remain within range of the eye tracker. Though modern systems can track participants’ eyes over a wide range, participants often move out of range over time. When this occurs, the facilitator must ask a participant to move back into range. Each time this happens, it interrupts the participant’s task and disrupts the naturalness of the situation. vii. Eye tracking tests take more time. This is why eye tracking is probably not the best choice for testing with a low budget or when a quick result is needed. viii. Eye tracking is subject to technical problems. ix. The equipment is very expensive and it is also necessary to have a specialized knowledge to work with this tool. It is crucial to have the trained employers who know how to use this technique, and most important of all, there needs to be specialized staff to interpret the results obtained and make conclusions. x. Not all participants fulfill the requirements to work with an eye tracking device. For example, people with contact lenses are not able to take part in these

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