This means a reader can read for hours with less eye fatigue and strain.

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The downfall of these so-called stereoscopic displays is that, over time, they cause eye fatigue and headaches.

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This means a reader can read for hours without eye fatigue or strain.

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Its diopter adjustment mechanism assures the user of the clearest view of both subject and viewfinder display, while minimizing eye fatigue during extended shooting sessions.

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It also particularly creates a natural white color which reduces eye fatigue and greatly improves outdoor legibility by eliminating the difficulties of viewing the screen clearly under outdoor or bright light.

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Greenfield suggests the problem is a combination of high prices, the novelty of the technology wearing off and 3-D eye fatigue which keeps people from coming back to see movies two or three times.

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Scanning over a wide area, though, is challenging because of the amount of territory that must be reviewed, the limited field of view of the human eye, and the effects of fatigue.

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The eye blink is a function of fatigue.

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