“My concern comes from direct experience. The very first wearable computer system I put together showed me real-time video on a helmet-mounted display. The camera was situated close to one eye, but it didn’t have quite the same viewpoint. The slight misalignment seemed unimportant at the time, but it produced some strange and unpleasant results. And those troubling effects persisted long after I took the gear off. That’s because my brain had adjusted to an unnatural view, so it took a while to readjust to normal vision.”
A detailed article from a man who has been designing and wearing his own augmented vision systems since the 70s, and has a lot to say about eyestrain and solutions he’s found to the problems of designing for augmented vision.