A Look Behind the Curtain: Exploring the Limits of Gaze Typing

Text entry in Augmented and Virtual Reality applications remains a major challenge for a comprehensive and ubiquitous usability of this technology. Therefore, researchers have proposed several solutions for text entry in Augmented Reality. Hands-free gaze typing is a popular approach to ensure mobility and both fast and accurate typing. However, prior studies struggle with the missing expertise of participants. We propose a study design that eliminates the learning process and gives an outlook to future gaze typing performance. In particular, we focus on the time-dependent effects of different dwell times on typing performance. By focusing on user-specific limitations, the results of this study are a prerequisite to user-adaptive gaze typing without fatigue.