chromatopsia

[kro″mah-top´se-ah] a visual defect in which colored objects appear unnaturally colored and colorless objects appear tinged with color. The chromatopsias are named for the colors seen: cyanopsia, blue; chloropsia, green; erythropsia, red; xanthopsia, yellow. Chromatopsia may be caused by drugs, disturbance of the optic centers, cataract extraction, or dazzling light.

chro·ma·top·si·a

(krō'mă-top'sē-ă), A condition in which objects appear to be abnormally colored or tinged with color; designated according to the color seen: xanthopsia, yellow vision; erythropsia, red vision; chloropsia, green vision; cyanopsia, blue vision. Synonym(s): chromatic vision, colored vision, tinted vision Compare: dyschromatopsia. [chromato- + G. opsis, vision]

chro·ma·top·si·a

(krō'mă-top'sē-ă) A condition in which objects appear to be abnormally colored or tinged with color.
Compare: dyschromatopsia
Synonym(s): chromatic vision, colored vision. [chromato- + G. opsis, vision]

chromatopsia

Abnormal perception of colour. This may be due to a toxic effects on the RETINA, developing CATARACT, hallucinogenic drugs or psychiatric disorders.

chromatopsia

Abnormal condition in which objects appear falsely coloured. Depending upon the colour seen, the chromatopsia is called xanthopsia (yellow vision), erythropsia (red vision), chloropsia (green vision) or cyanopsia (blue vision). This condition may appear after a cataract operation (blue and red vision) or following exposure to an intense illumination (red vision) or in people suffering from carbon monoxide poisoning and oxygen deprivation. This may cause some damage to the areas of the visual cortex involved in the processing of colour perception, because these areas are supplied with more blood vessels than other areas of the visual cortex. Syn. chromopsia. See euchromatopsia; xanthopsia.

单词	chromatopsia
释义	chromatopsia chromatopsia (ˌkrəʊməˈtɒpsɪə) n (Pathology) an irregularity in the ability to see colours properly chromatopsia chromatopsia [‚krō·mə′täp·sē·ə] (medicine) A disorder of visual sensation in which color impressions are disturbed or arise subjectively, with objects appearing as unnaturally colored or colorless objects as colored; may be caused by a disturbance of the optic centers, psychic disturbance, or drugs. chromatopsia chromatopsia [kro″mah-top´se-ah] a visual defect in which colored objects appear unnaturally colored and colorless objects appear tinged with color. The chromatopsias are named for the colors seen: cyanopsia, blue; chloropsia, green; erythropsia, red; xanthopsia, yellow. Chromatopsia may be caused by drugs, disturbance of the optic centers, cataract extraction, or dazzling light. chro·ma·top·si·a (krō'mă-top'sē-ă), A condition in which objects appear to be abnormally colored or tinged with color; designated according to the color seen: xanthopsia, yellow vision; erythropsia, red vision; chloropsia, green vision; cyanopsia, blue vision. Synonym(s): chromatic vision, colored vision, tinted vision Compare: dyschromatopsia. [chromato- + G. opsis, vision] chro·ma·top·si·a (krō'mă-top'sē-ă) A condition in which objects appear to be abnormally colored or tinged with color. Compare: dyschromatopsia Synonym(s): chromatic vision, colored vision. [chromato- + G. opsis, vision] chromatopsia Abnormal perception of colour. This may be due to a toxic effects on the RETINA, developing CATARACT, hallucinogenic drugs or psychiatric disorders. chromatopsia Abnormal condition in which objects appear falsely coloured. Depending upon the colour seen, the chromatopsia is called xanthopsia (yellow vision), erythropsia (red vision), chloropsia (green vision) or cyanopsia (blue vision). This condition may appear after a cataract operation (blue and red vision) or following exposure to an intense illumination (red vision) or in people suffering from carbon monoxide poisoning and oxygen deprivation. This may cause some damage to the areas of the visual cortex involved in the processing of colour perception, because these areas are supplied with more blood vessels than other areas of the visual cortex. Syn. chromopsia. See euchromatopsia; xanthopsia.
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