Variability in normal and defective colour vision: consequences for occupational environments
J.L. Barbur and M. Rodriguez-Carmona, City University London, UK
New findings in relation to both normal and defective colour vision provide improved understanding of chromatic mechanisms in human vision and account for much of the variability observed in both normal trichromats and in subjects with congenital colour deficiency. The principal methods for assessing colour vision and the techniques employed to isolate the use of colour signals are reviewed. Data on the continuous distribution of colour thresholds within deutan and protan observers and the variability within normal trichromatic colour vision are presented and the principal ...