Mapping the visual field : an empirical study on the user experience benefits of gaze-based interaction in visual field testing
Kiviranta, Pauliina (2017)
2017
Tietojenkäsittelytieteiden tutkinto-ohjelma - Degree Programme in Computer Sciences
Viestintätieteiden tiedekunta - Faculty of Communication Sciences
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Hyväksymispäivämäärä
2017-09-27
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:uta-201710092561
https://urn.fi/URN:NBN:fi:uta-201710092561
Tiivistelmä
Visual field testing is a medical procedure used for detecting impairments in a patient s field of view. While plenty of research and different applications concerning visual field testing exist, gaze-based interaction in visual field testing is quite an understudied subject. This study s goal was to investigate, whether it is possible to build a functional visual field test application with a relatively simple pc + monitor + eye tracker setup that utilizes gaze input from the user, and if so, whether the gaze input could have potential user experience -related or other advantages over more traditional mouse click input.
To acquire a basic understanding on the human visual field and the principles of visual field testing, a literature review was conducted as the basis of this study. After that, a test software with available gaze input and mouse click input was designed and built. User tests with overall 8 participants were arranged in the university s gaze research laboratory. In the tests, the participants completed two test runs with each input method, and were asked to evaluate and compare the following user-experience related attributes, the mental and physical load, effort, discomfort and learnability, during and after the test. Finally, a lightweight interview where the participants were allowed to elaborate their evaluation was conducted.
While the participants did not consider either of the tested interaction techniques too difficult to use, the gaze interaction generally gained more favourable evaluations from the participants. Based on the results, gaze input shows promise, although a lot more work, for which some ideas are proposed in the discussion section of this study, is still required to make any definitive conclusions.
To acquire a basic understanding on the human visual field and the principles of visual field testing, a literature review was conducted as the basis of this study. After that, a test software with available gaze input and mouse click input was designed and built. User tests with overall 8 participants were arranged in the university s gaze research laboratory. In the tests, the participants completed two test runs with each input method, and were asked to evaluate and compare the following user-experience related attributes, the mental and physical load, effort, discomfort and learnability, during and after the test. Finally, a lightweight interview where the participants were allowed to elaborate their evaluation was conducted.
While the participants did not consider either of the tested interaction techniques too difficult to use, the gaze interaction generally gained more favourable evaluations from the participants. Based on the results, gaze input shows promise, although a lot more work, for which some ideas are proposed in the discussion section of this study, is still required to make any definitive conclusions.