title: A consideration of the racial incidence of congenital dyschromats in males and females.
abstract: The female incidence of congenital dyschromats corresponds to the square of the males in the Northern European populations, but this relation is not always true in the non-white races. The above-mentioned facts in the non-white races which are theoretically strange are considered to be caused by an anti-glare factor of pigment epithelium in their eyes, on the assumption that the abnormal color sense of color defectives may be a special form of visual dysfunction glare pointed out by IINUMA.
mesh_terms: D044466:Asian People; D044383:Black People; D003117:Color Vision Defects / Q000235:genetics*; D005260:Female; D006801:Humans; D008297:Male; D010857:Pigment Epithelium of Eye; D044469:Racial Groups; D012737:Sex Factors; D014665:Vasodilator Agents; D044465:White People
chemical_list: D014665:Vasodilator Agents