Abstract
DURING the past two years the colour vision of many thousands of recruits for the Royal Navy has been tested by a modified form of the Ishihara and Stilling Tests. Thus for the first time it has become possible to compare the proportions of colour-blind men in different regions of Great Britain on a large scale. Significantly greater proportions have been found to occur in the western than in the eastern half of the country. The following table gives the percentages of defectives in nine major areas of Britain, each percentage being based on more than 6,000 cases. Each percentage has also been adjusted for the lower level of intelligence which occurs in some testing centres than in other centres, since it has been found that men of very low intelligence tend to do less well at the test.
Similar content being viewed by others
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
VERNON, P., STRAKER, A. Distribution of Colour-blind Men in Great Britain. Nature 152, 690 (1943). https://doi.org/10.1038/152690a0
Issue Date:
DOI: https://doi.org/10.1038/152690a0
This article is cited by
-
Possible cases of relaxed selection in civilized populations
Humangenetik (1971)
-
Frequency of Colour Blindness among East Kentish Children
Nature (1966)
-
Race, Pigmentation and Colour Vision
Nature (1948)
-
Frequencies of Sex-Linked Red-Green Colour Vision Defects
Nature (1947)
-
Sex Differences in Colour Vision
Nature (1947)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.