visual pigment


visual pigment
зрительный пигмент

Англо-русский офтальмологический словарь. 2010.

Смотреть что такое "visual pigment" в других словарях:

  • visual pigment — ▪ physiology       any of a number of related substances that function in light reception (photoreception) by animals by transforming light energy into electrical (nerve) potentials.       It is believed that all animals employ the same basic… …   Universalium

  • Visual phototransduction — is a process by which light is converted into electrical signals in the rod cells, cone cells and photosensitive ganglion cells of the retina of the eye.The visual cycle is the biological conversion of a photon into an electrical signal in the… …   Wikipedia

  • Pigment — For the drug referred to as pigment, see black tar heroin. Natural ultramarine pigment in powdered form …   Wikipedia

  • Visual system — The visual system includes the eyes, the connecting pathways through to the visual cortex and other parts of the brain. The illustration shows the mammalian system. The visual system is the part of the central nervous system which enables… …   Wikipedia

  • Visual acuity — 20/15 and 20/15 vision redirect here. For other uses, see 2020 (disambiguation). Typical Snellen chart used for visual acuity testing. Visual acuity (VA) is acuteness or clearness of vision, which is dependent on the sharpness of the retinal… …   Wikipedia

  • Pigment — A substance that gives color to tissue. Pigments are responsible for the color of skin, eyes, and hair. * * * 1. Any coloring matter, as that of the red blood cells, hair, iris, etc., or the stains used in histologic or bacteriologic work, or… …   Medical dictionary

  • Visual arts — The visual arts are art forms that focus on the creation of works which are primarily visual in nature, such as painting, photography, printmaking, and filmmaking. Those that involve three dimensional objects, such as sculpture and architecture,… …   Wikipedia

  • visual — adj. & n. adj. of, concerned with, or used in seeing. n. (usu. in pl.) a visual image or display, a picture. Phrases and idioms: visual aid a film, model, etc., as an aid to learning. visual angle the angle formed at the eye by rays from the… …   Useful english dictionary

  • pigment epitheliopathy — acute posterior multifocal placoid pigment epitheliopathy (APMPPE): an inflammatory disease of the retinal pigment epithelium (RPE; see retina), characterized by the presence of multiple cream coloured irregular lesions scattered in the posterior …   Medical dictionary

  • pigment epitheliopathy — acute posterior multifocal placoid pigment epitheliopathy (APMPPE): an inflammatory disease of the retinal pigment epithelium (RPE; see retina), characterized by the presence of multiple cream coloured irregular lesions scattered in the posterior …   The new mediacal dictionary

  • visual purple — noun Date: 1878 a photosensitive red or purple pigment in the retinal rods of various vertebrates; especially rhodopsin …   New Collegiate Dictionary


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