Also known as cyanopia and blue vision. The term cyanopsia comes from the Greek words kuaneos (blue) and opsis (seeing). It is used to denote a *chromatopsia (i.e. a temporary aberration of colour vision) in which whites are seen as blue or bluish, and yellows as less intense. As the opposite condition (known as *xanthopsia or yellow vision) is sometimes caused by cataract of the lens, it is understandable that cyanopsia can occur as a temporary side effect after cataract extraction. Cyanopsia tends to be classified as an * entoptic phenomenon. The term is used in opposition to the terms *chloropsia (green vision), * xanthopsia (yellow vision), *erythropsia (red vision), and * ianothiopsia (violet or purple vision).
   Pinckers, A., Cruysberg, J.R.M., Liem, T.A. (1989). Chromatopsia. Documenta Ophthalmologica, 72, 385-390.

Dictionary of Hallucinations. . 2010.

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  • Cyanopsia — is a medical term for seeing everything tinted with blue. It is also referred to as blue vision. Cyanopsia often occurs for a few days, weeks, or months after removal of a cataract from the eye. Cyanopsia also sometimes occurs as a side effect of …   Wikipedia

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  • cyanopsia — noun A disorder of the vision causing all objects to appear blue, often the temporary consequence of removal of a cataract …   Wiktionary

  • cyanopsia — A condition in which all objects appear blue; may temporarily follow cataract extraction. SYN: blue vision, cyanopia. [cyano + G. opsis, vision] * * * n. a condition in which everything looks bluish. * * * cy·a·nop·sia (si″ə nopґse… …   Medical dictionary

  • cyanopsia — n. a condition in which everything looks bluish …   The new mediacal dictionary

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