Optogram
Optogram Op"to*gram, n. [Optic + -gram: cf. F. optogramme.] (Physiol.) An image of external objects fixed on the retina by the photochemical action of light on the visual purple. See {Optography}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • optogram — op·to·gram äp tə .gram n an image of an external object fixed on the retina by the photochemical action of light on the rhodopsin * * * op·to·gram (opґto gram) [opto + gram] the retinal image formed by the bleaching of the visual purple under the …   Medical dictionary

  • optogram — op·to·gram …   English syllables

  • optogram —   n. image fixed on retina.    ♦ optometry, n. measuring range of vision; eye testing.    ♦ optophone, n. instrument enabling blind to read by transforming light into sound.    ♦ optotypes, n. pl. varying sized print for eye testing …   Dictionary of difficult words

  • optogram — ˈäptəˌgram noun Etymology: International Scientific Vocabulary opto + gram, originally formed as German optogramm : an image of an external object fixed on the retina by the photochemical action of light on the visual purple …   Useful english dictionary

  • pseudo-optogram — pseu·do op·to·gram (soo″do opґto gram) an optogram in which the rods strip off from the illuminated spot and only the cones remain …   Medical dictionary

  • Optography — Op*tog ra*phy, n. [Optic + graphy.] (Physiol.) The production of an optogram on the retina by the photochemical action of light on the visual purple; the fixation of an image in the eye. The object so photographed shows white on a purple or red… …   The Collaborative International Dictionary of English

  • Kühne , Wilhelm Friedrich — (1837–1900) German physiologist Willy Kühne, the son of a wealthy Hamburg merchant, was educated at the University of Göttingen where he obtained his PhD on induced diabetes in frogs in 1856. He studied further in Jena, Berlin, Paris (under… …   Scientists

  • optograma — Eng. Optogram Imagen retinal formada por la destrucción de la púrpura visual por influencia de la luz …   Diccionario de oftalmología

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