Steady-state accommodation response and VDT screen conditions

Collins, Michael J., Davis, Brett A., & Goode, Andrew (1994) Steady-state accommodation response and VDT screen conditions. Applied Ergonomics, 25(5), pp. 334-338.

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Steady-state accommodation response was measured for seven different visual display terminal (VDT) screen conditions and a hard-copy control condition. The screen conditions included variations in screen polarity, contrast and chromatic characteristics of the text and background. Accomodation response was measured for seven young subjects using a free-space infrared optometer, the Canon Autoref R-1. The accomodation response was measured every 1.3 s over a period of 60 s for each test condition, and both the mean and standard deviation of the responses were derived. A small but significantly higher accomodation response was found for hard copy, blue-on-red and red-on-blue screen conditions compared with white-on-black, green-on-black and black-on-white screen conditions. Screen polarity and contrast had little effect on accomodation response for the black-and-white screen conditions. The variability of accommodation response showed little difference between test conitions. For short-term VDT screen viewing, the accomodation response appears to be relatively accurate and stable across a wide range of screen conditions.

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1 citations in Web of Science®
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ID Code: 855
Item Type: Journal Article
Refereed: Yes
Additional Information: For more information, please refer to the journal’s website (see hypertext link) or contact the author.
Keywords: visual display terminal, accomodation, vision, eye
DOI: 10.1016/0003-6870(94)90049-3
ISSN: 0003-6870
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 1994 Elsevier
Deposited On: 21 Mar 2005 00:00
Last Modified: 15 Jan 2009 06:34

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