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Newer design of close-up computer monitors increases ease of use

degree: headache, eyestrain, sore or irritated eyes, blurry vision, dizziness, nausea, disorientation, neck ache or backache.

Results showed that the performance of the monocular vision display was comparable to the performance of the flat panel screen and hard copy text.

"To our surprise, the reading tasks were completed faster with the monocular display than with the binocular display," said Sheedy. "This may have had to do with how each display fit the user, or the design of the respective device."

However, the subjects did complain about eyestrain more with the monocular display than with any of the other displays.

Performance speeds with the binocular display were about 5 to 7 percent slower than for the other displays, the researchers found. Sheedy suspects that this slower speed may have something to do with how the image is aligned along the line of sight in each lens.

The image displayed by a near-eye device may appear to be much farther - up to 6 feet away - from the viewer than an image on a typical computer monitor. The seemingly greater distance makes for easier viewing, Sheedy said. But the image size in a near-eye display is about the size of an average computer screen.

"Traditional displays are constrained by their physical size and are usually about 20 to 30 inches from the eyes," he said.

The second experiment assessed the risk for motion-related symptoms while
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Contact: James Sheedy
Sheedy.2@osu.edu
614-247-7632
Ohio State University
29-Aug-2002


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