Population Data on Near Field Visual Acuity for Use with the Vision and Lighting Diagnostic (VALiD) Kit

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DOIResolve DOI: http://doi.org/10.4224/20386218
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TypeTechnical Report
Series titleResearch Report (National Research Council Canada. Institute for Research in Construction); no. RR-123
Physical description33 p.
AbstractAlthough there are a variety of reasons why a person might complain about seeing in the work environment, it is possible that his own visual capacity has created or exacerbated a problem. At present, there are no practical and meaningful field tests available for diagnosing potential problems in visual capacity. Although incomplete as a diagnostic tool for visual performance and ocular health, visual acuity is a sensitive measure of a person's visual potential. This report documents a large population study of near-field visual acuity as well as a simple empirical model for predicting visual acuity for different target contrasts and observer ages under two illumination levels. A simple field testing procedure, based upon the population acuity data, is also discussed. For application specialists concerned with complaints about seeing in the work environment, this procedure can be a useful tool for diagnosing the source of those complaints.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC numberNRC-IRC-15161
NPARC number20386218
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Record identifier897fb9a8-9f5e-4475-a911-d7f5767d03d0
Record created2012-07-25
Record modified2017-06-14
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