Fundamentals of Wearable Computers and Augmented Reality, 2nd Edition

23Wearable Computing

situations. In the operating room, anesthesiologists use HMDs in a similar way. The

HMD overlays vital statistics on the doctor’s visual eld while monitoring the patient

(Liu etal. 2009). Current practice often requires anesthesiologists to divert their gaze

to monitor elsewhere in the room, which reduces the speed at which dangerous situ-

ations are detected and corrected.

With more case studies showing the advantages of HMDs in the workplace,

industry has shown a steady interest in the technology. From the mid-1990s to after

2000, companies such as FlexiPC and Xybernaut provided a general-purpose line

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(b)

(c)

(d)

(e)(