Color Vision and Age

Abstract
A previous investigator reported a striking deterioration of color discrimination efficiency from 25 to 55 yrs. of age. However in the present study, when the effects of such extraneous variables as intelligence, occupation and socio-economic status were controlled by using a relatively homogeneous sample, no evidence of deterioration in color vision efficiency between the ages of 20 and 59 was observed. From 2 small samples of men age 60 and over it appears that there may be a higher than normal incidence of color blindness. Further research is indicated, particularly by way of longitudinal rather than cross-section studies.

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