color blindness

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color blindness,

visual defect resulting in the inability to distinguish colors. About 8% of men and 0.5% of women experience some difficulty in color perception. Color blindness is usually an inherited sex-linked characteristic, transmitted through, but recessive in, females. Acquired color blindness results from certain degenerative diseases of the eyes. Most of those with defective color vision are only partially color-blind to red and green, i.e., they have a limited ability to distinguish reddish and greenish shades. Those who are completely color-blind to red and green see both colors as a shade of yellow. Completely color-blind individuals can recognize only black, white, and shades of gray. Color blindness is usually not related to visual acuity; it is significant, therefore, only when persons who suffer from it seek employment in occupations where color recognition is important, such as airline pilots, railroad engineers, and others who must recognize red and green traffic signals. Tests for color blindness include identifying partially concealed figures or patterns from a mass of colored dots and matching skeins of wool or enameled chips of various colors.

Color Blindness


the inability to distinguish colors. Total color blindness (monochromatism), in which no color differences can be distinguished, is rare. (SeeDALTONISM for a discussion of partial color blindness.)

color blindness

[′kəl·ər ‚blīnd·nəs]
Inability to perceive one or more colors.
References in periodicals archive ?
The practice of colorblindness assumes that all individuals are alike and does not allow for diversity of experience, or perception.
In this article, I discuss how CRT has helped me address colorblindness in my work with primarily white teachers.
Affirmative action's constitutionality demands a confrontation with the debate over colorblindness in constitutional law.
Depending on the type and severity of the condition, colorblindness may be a disability protected under the federal Americans with Disabilities Act and the Oregon disabilities laws.
The court submitted that the Fourteenth Amendment's commitment to colorblindness invites rooting out laws that erroneously claim "race somehow matters.
Rather than follow King's vision of merging colorblindness with a needs-based remediation, Edley outlines a vision that pays limited homage to the colorblind principle--saying no to quotas--but allows race to be used as a plus factor in decision making Rejecting the sterile "equal opportunity" of conservatives, Edley calls for "morally equal opportunity" He explains: "All Americans should have, so far as is possible, a full and equal chance to develop their talents and use them for the betterment of themselves, their families, and their society" Edley claims racial preferences are needed to create this condition, citing Lyndon Johnson's famous 1965 Howard University speech: "Men and women of all races are born with the same range of abilities.
The author explains that colorblindness, while well-meaning, can glaze over systemic racial problems, causing people who are white to be blind to the privilege afforded them by their race.
Black males in the green mountains; colorblindness and cultural competence in Vermont public schools.
However, new research from the Kellogg School of Management shows that promoting colorblindness can lead people to turn a blind eye to even overt examples of racial discrimination and hamper the prospect for intervention.
By assuming, however implausibly, that colorblindness has been the American creed, and by identifying himself as a loyal adherent, Eastland finds it easy to be intolerant of those who would compromise this ideal.
The firm is committed to increasing public awareness and sensitivity about colorblindness, and to provide help to those individuals who may be limited by this visual handicap.