tritanopia
/ˌtrɪtəˈnəʊpɪə
/noun [mass noun]
A rare form of colour blindness resulting from insensitivity to blue light, causing confusion of greens and blues. Compare with protanopia.Protanopia, deuteranopia and tritanopia are all types of dichromatism....
- Sometimes tritanopia occurs due to disease, because the short wavelength cone is more fragile than the other cone types.
- With tritanopia, the person is deficient in blue and yellow perception, although he is still sensitive to red and green.
Origin
Early 20th century: from trito- 'third' (referring to blue as the third colour in the spectrum) + an-1 'without' + -opia.