  In this paper, we present an analysis of eye gaze patterns pertaining to
visual cues in augmented reality (AR) for head-mounted displays (HMDs). We
conducted an experimental study involving a picking and assembly task, which
was guided by different visual cues. We compare these visual cues along
multiple dimensions (in-view vs. out-of-view, static vs. dynamic, sequential
vs. simultaneous) and analyze quantitative metrics such as gaze distribution,
gaze duration, and gaze path distance. Our results indicate that visual cues in
AR significantly affect eye gaze patterns. Specifically, we show that the
effect varies depending on the type of visual cue. We discuss these empirical
results with respect to visual attention theory.
