Assessment of Usability and Perceived Presence in Virtual Environments for Visual Function Testing

Eye-related disorders are increasing rapidly in recent times, and it is difficult for the patients to visit the clinic frequently for regular testing and reach out to the clinician in person especially during pandemic times. Hence, there is a need in developing a home-based visual function assessment test for the patients and motivate for frequent testing to know the progression of their visual disorder. Gamification would make visual function testing enjoyable for those who lack attention and motivation. This study outcome would enable to know the usability of the mobile and Virtual Reality (VR) Visual Acuity tests and the presence felt by the users in VR environments for enhancing motivation through engagement while testing. The study results in determining an optimal home-based portable gamified eye tests in VR that is usable and engaging. Results obtained show the user perceived presence and usability increases with the increase in the interaction and display fidelity of the virtual environment and device.