Effects of Eye Vergence and Accommodation on Interactions with Content on an AR Magic-lens Display and its Surroundings

Abstract

Figure 1: Depending on the type of magic-lens display (green), eye accommodation (blue lines) and/or vergence (black lines) distances must change as the observer shifts from a near display (green) to the far surroundings (brown), or vice versa. The top-right of each scenario shows the first-person view of letters "A," "B," and "C" when the gaze is fixed on letter "B." We considered four display types: (1) Conventional displays. "A" and "C" are out of focus and have double vision. Both the vergence and accommodation distances must change as the gaze shifts (yellow arrow) toward the surroundings. (2) Stereoscopic displays. "A" and "C" are out of focus; only the accommodation must change. (3) Varifocal displays. "A" and "C" are observed with double vision; only the vergence must change. (4) Transparent displays. All three letters in focus and without double vision; no accommodation or vergence changes are necessary.