While an organism with complete absence of melanin is called an albino (UK /aelˈbiːnoʊ/ , ælˈbiːnoʊ OR /us/) aelˈbaɪnoʊ ælˈbaɪnoʊ an organism with only a diminished amount of melanin is described as leucistic. Or albinoid albinism is associated with a number of, vision defects such, as photophobia nystagmus. and amblyopia