monochromat /mono·chro·mat/ (-kro´mat) a person with monochromatic vision.
mon·o·chro·mat (m n  -kr  m t)n. A person with achromatopsia. |
monochromat
Person who has a condition of monochromatism (total colour blindness). There are two types of monochromats: the cone monochromat whose photopic luminosity curve resembles the normal and who has normal visual acuity and dark adaptation; and the rod monochromat whose retina does not contain functional cones and, therefore, has poor vision, photophobia and sometimes associated nystagmus and myopia. Monochromats are very rare: estimated at about three persons in 100 000. See achromatopsia; defective colour vision; cone dystrophy.
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