scotopic adaptation

scotopic adaptation
dark a.

Medical dictionary. 2011.

Поможем решить контрольную работу

Look at other dictionaries:

  • Scotopic vision — is the monochromatic vision of the eye in low light. Since cone cells are nonfunctional in low light, scotopic vision is produced exclusively through rod cells so therefore there is no color perception. Scotopic vision occurs at luminance levels… …   Wikipedia

  • scotopic — Referring to low illumination to which the eye is dark adapted. See s. vision. * * * sco·to·pic skə tō pik, täp ik adj of, relating to, being, or suitable for scotopic vision <rods functioning under scotopic conditions> <scotopic… …   Medical dictionary

  • adaptation — 1. Preferential survival of members of a species because of a phenotype that gives them an enhanced capacity to withstand the environment including the ecology. 2. An advantageous change in function or constitution of an organ or tissu …   Medical dictionary

  • Adaptation (eye) — In ocular physiology, adaptation is the ability of the eye to adjust to various levels of darkness and light. Contents 1 Efficacy 2 Mechanisms 3 Insufficiency 4 See also …   Wikipedia

  • scotopic — adj. relating to or describing conditions of poor illumination. For example, scotopic vision is vision in dim light in which the rods of the retina are involved (see dark adaptation) …   The new mediacal dictionary

  • dark adaptation — därk n the phenomena including dilation of the pupil, increase in retinal sensitivity, shift of the region of maximum luminosity toward the blue, and regeneration of rhodopsin by which the eye adapts to conditions of reduced illumination compare …   Medical dictionary

  • adaptación escotópica — Eng. Scotopic adaptation Ver adaptación a la oscuridad …   Diccionario de oftalmología

  • scotopia — scotopic /skeuh top ik, skoh /, adj. /skeuh toh pee euh, skoh /, n. Ophthalm. vision in dim light (opposed to photopia). Cf. dark adaptation. [SCOT(O) + OPIA] * * * …   Universalium

  • eye, human — ▪ anatomy Introduction  specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit       The eye is protected from mechanical injury… …   Universalium

  • vision — The act of seeing. SEE ALSO: sight. [L. visio, fr. video, pp. visus, to see] achromatic v. SYN: achromatopsia. binocular v. v. with a single image, by both eyes simultaneously. blue v. SYN: cyanopsia. central v. v. stimulated by an object imaged… …   Medical dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”