title: Colour vision deficiency among two populations of Chamars, a scheduled caste population of Uttar Pradesh (India).
abstract: On n = 320 nonrelated Kureel Chamars (160 males, 160 females) from Lucknow and neighbouring villages and n = 314 nonrelated Jaiswar Chamars (160 males, 154 females) from Jaunpur the frequency of colourvision deficiency was examined. In the Kureel Chamars the frequency of deuteranopia comes to a total of 1.25% (males: 25%, females: 0.0%), in the Jaiswar Chamars to a total of 1.91% (males: 3.13%, females: 0.65%). Protanopes were only found in the Kureel Chamars (0.63%; males: 1.25%, females: 0.0%). These observations are discussed and compared with those obtained on other Indian populations.
mesh_terms: D003117:Color Vision Defects / Q000145:classification / Q000453:epidemiology* / Q000235:genetics; D005006:Ethnicity; D005260:Female; D005787:Gene Frequency; D006801:Humans; D007194:India; D008297:Male; D012424:Rural Population; D014505:Urban Population