monochromacyn.
/ˌmɒnə(ʊ)ˈkrəʊməsi/, U.S. /ˌmɑnəˈkroʊməsi/ Ophthalmology.
= monochromatism n. 2.
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the world > health and disease > ill health > a disease > disorders of eye > disordered vision > [noun] > colour blindness
Daltonism1841
xanthopsia1842
colour blindness1844
chromatopsia1848
achromatopsia1849
chromatometablepsy1849
chromatopseudopsy1849
acritochromacy1855
dichromatism1859
blue-blindness1868
green-blindness1868
red-blindness1868
chromatopsy1879
red vision1880
dyschromatopsia1890
xanthocyanopy1890
xanthocyanopsy1891
dichromacy1892
monochromatism1893
violet-blindness1894
monochromacy1900
deuteranopia1901
protanopia1902
tritanopia1915
deuteranomaly1932
protanomaly1932
tritanomaly1943
1900 Stud. Yale Psychol. Lab. 8 15 Still another form of color-vision is found in monochromasy. All the visible objects are seen as shades of one color.
1922 W. Peddie Colour Vision ii. 16 The most extreme condition is that of total colour blindness in which every colour in the spectrum can be matched with grey. It is not inconceivable that a case of this kind may be one of true monochromasy, the one colour extending throughout the whole spectrum.
1957 Jrnl. Optical Soc. Amer. 47 338/2 (heading) ‘Blue mono-cone monochromacy’: a new color vision defect.
1978 Nature 23 Nov. 390/1 In blue cone monochromacy, a unique kind of colour vision anomaly, there are only blue cones and no functioning red or green cones.
1999 Amer. Jrnl. Human Genetics 64 1679 Achromatopsia, or total color blindness (also referred to as ‘rod monochromacy’), is a severe retinal disorder characterized clinically by an inability to distinguish colors, impaired visual acuity in daylight, photophobia, and nystagmus.
This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).
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n.1900