The problem of triggering input accurately (with a small temporal offset) and precisely (with high repeatability) at a specific point in time has so far been largely ignored in gaze interaction research. We explore voluntary eye convergences as a novel interaction technique for precise and accurate timing of gaze input and a solution to the "Midas touch" problem, i.e. the accidental triggering of input when looking at an interface. We introduce a novel clock paradigm to study input timing and demonstrate that voluntary convergences are significantly more accurate and precise than common gaze dwelling. Our findings suggest that voluntary convergences are well-suited for applications in which timing of user input is important, thereby complementing existing gaze techniques that focus on speed and spatial precision.

@inproceedings{kirst16_chi,
  title = {On the Verge: Voluntary Convergences for Accurate and Precise Timing of Gaze Input},
  author = {Kirst, Dominik and Bulling, Andreas},
  year = {2016},
  booktitle = {Ext. Abstr. ACM SIGCHI Conference on Human Factors in Computing Systems (CHI)},
  pages = {1519-1525},
  doi = {10.1145/2851581.2892307},
}