blue-blind vs blue-blindness

blue-blind is not a noun while blue-blindness is a noun.

Word	Noun	Adjective	Verb	Adverb
blue-blind	No	Yes	No	No
blue-blindness	Yes	No	No	No

blue-blind (noun)	blue-blindness (noun)
	rare form of dichromacy characterized by a lowered sensitivity to blue light resulting in an inability to distinguish blue and yellow

blue-blind (adjective)	blue-blindness (adjective)
inability to see the color blue or to distinguish the colors blue and yellow