Haidinger's brushes

Dictionary of Hallucinations. . 2010.

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  • Haidinger's brushes — Hai·ding·er s brush·es hī diŋ ərz brəsh əz n pl a faint blue and yellow dumbbell shaped image that is produced in the human eye by the selective absorption of polarized light by the yellow macular pigment of the fovea and can be used to detect… …   Medical dictionary

  • Haidinger's brush —    Also known as Haidinger brushes, Haidinger s brushes, and Haidinger s polarization brushes. All four eponyms refer to the Austrian physicist, geologist, and mineralogist Wilhelm Karl Ritter von Haidinger (1795 1871), who has been credited with …   Dictionary of Hallucinations

  • Haidinger's brush — is an entoptic phenomenon first described by Austrianphysicist Wilhelm Karl von Haidinger in 1844.Many people are able to perceive polarization of light.It may be seen as a yellowish horizontal bar or bow tie shape (with fuzzy ends, hence the… …   Wikipedia

  • Haidinger's polarization brushes —    see Haidinger s brush …   Dictionary of Hallucinations

  • Haidinger brushes —    see Haidinger s brush …   Dictionary of Hallucinations

  • Phenomene entoptique — Phénomène entoptique Les phénomènes entoptiques sont des effets visuels dont la source est dans l’œil lui même. Sommaire 1 Définition et histoire 2 Exemples de phénomènes entoptiques 2.1 Phénomène pseudo entoptique …   Wikipédia en Français

  • Phénomène entoptique — Les phénomènes entoptiques sont des effets visuels dont la source est dans l’œil lui même. Sommaire 1 Définition et histoire 2 Exemples de phénomènes entoptiques 2.1 Phénomène pseudo entoptique …   Wikipédia en Français

  • Phénomènes entoptiques — Phénomène entoptique Les phénomènes entoptiques sont des effets visuels dont la source est dans l’œil lui même. Sommaire 1 Définition et histoire 2 Exemples de phénomènes entoptiques 2.1 Phénomène pseudo entoptique …   Wikipédia en Français

  • retinogenic phenomenon —    Also known as idioretinal phenomenon and idioretinal sensation. The term retinogenic phenomenon is indebted to the Latin noun retina (little net) and the Greek noun genesis (creation, origin). It is used to denote a visual hallucination or… …   Dictionary of Hallucinations

  • brush — An instrument made of some flexible material, such as bristles, attached to a handle or to the tip of a catheter. [A.S. byrst, bristle] Ayre b. a device, consisting of a long flexible tube with a b. at the distal end, for collecting gastric… …   Medical dictionary

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