The term dysmorphopsia comes from the Greek words dus (bad), morphè (form), and opsis (seeing). It translates roughly as the inability to perceive the proper form of objects. In a restricted sense, the term dysmorphopsia is used to denote a variant of "metamorphopsia in which lines appear wavy. In this version, dysmorphopsia is associated primarily with bilateral occipital cortical damage, due to carbon monoxide poisoning, for example, or to the use of psychotomimetic substances such as cocaine, LSD, or mescaline. As exemplified by the work of the German psychiatrist Carl Schneider (1891-1945), the term dysmorphopsia used to have a broader connotation during the first decades of the 20th century, denoting something like the present umbrella term metamorphopsia. Conversely, the term metamorphopsia is used by the Danish neuroscientists Villars Lunn, Axel Klee (19331982?), and Rolf Willanger to denote a visual distortion in which objects appear to have distorted contours (i.e. what is now called dysmorphopsia).
   ffytche, D.H., Howard, R.J. (1999). The perceptual consequences of visual loss: 'positive' pathologies of vision. Brain, 122, 1247-1260. Klee, A., Willanger, R. (1966). Disturbances of visual perception in migraine. Acta Neurolog-ica Scandinavica, 42, 400-414. Lunn, V. (1948). Om legemsbevidstheden. Copenhagen: Ejnar Munksgaard. Schneider, C. (1930). Die Psychologie der Schizophrenen und ihre Bedeutung für die Klinik der Schizophrenie. Leipzig: Georg Thieme Verlag.

Dictionary of Hallucinations. . 2010.

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  • dysmorphopsia — dys·mor·phop·sia (dis″mor fopґse ə) [dys + morpho + opsia] defective vision, with distortion of the shape of objects perceived …   Medical dictionary

  • дисморфопсия — (dysmorphopsia; дис + греч. morphe форма + opsis зрение) см. Метаморфопсия …   Большой медицинский словарь

  • Дисморфопси́я — (dysmorphopsia; Дис + греч. morphē форма + opsis зрение) см. Метаморфопсия …   Медицинская энциклопедия

  • metamorphopsia —    The term metamorphopsia comes from the Greek words metamorphoun (to change the form) and opsis (seeing). It translates roughly as seeing an altered form . It is not clear who introduced the term, but it appears in a medical lexicon as early as …   Dictionary of Hallucinations

  • cocaine hallucinosis —    The term cocaine hallucinosis refers to the various hallucinatory phenomena associated with the chronic use of cocaine (as in a cocaine run or cocaine binge , which are both characterized by the prolonged consumption of high doses of cocaine) …   Dictionary of Hallucinations

  • dismorfopsia — Eng. Dysmorphopsia Ver metamorfopsia …   Diccionario de oftalmología

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