Abstract:
:A simulated field test was designed to determine whether the Holmes-Wright A lantern (HWA) is a valid color vision test for the rail industry. The simulation replicated viewing rail signal lights at 0.8 km distance under daylight conditions. Using the worst-normal as the maximum number of allowable errors on the simulation, 94% of the color-defectives failed both tests on the first trial and 92% failed at the second session. The HWA had a higher false negative rate than a false alarm rate. The majority of individuals who had discrepancies on the two tests were mild deutans. Results from the Ishihara test were marginally better at predicting performance on the simulation.
journal_name
Vision Resjournal_title
Vision researchauthors
Hovis JK,Oliphant Ddoi
10.1016/s0042-6989(98)00054-6subject
Has Abstractpub_date
1998-11-01 00:00:00pages
3487-91issue
21eissn
0042-6989issn
1878-5646pii
S0042-6989(98)00054-6journal_volume
38pub_type
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