Dark Adaptation - Physiology
Research News and Information

Sunday, November 22, 2009

Techniques for extraction of depth-resolved in vivo human retinal intrinsic optical signals with optical coherence tomography.

6 Sep 2009 PURPOSE: To demonstrate acquisition and analysis methods for depth-resolved observation of slow retinal physiology induced changes in infrared backscatter in vivo. METHODS: A dark-adapted human was briefly subjected to a localized photobleach. For ... Read more...

Sleep and sleep homeostasis in constant darkness in the rat.

20 Jun 2009 According to the two-process model of sleep regulation, a homeostatic Process S increases during waking and decreases during sleep. The time course of Process S can be derived on the basis of changes in vigilance states and changes in ... Read more...

Beta-ionone activates and bleaches visual pigment in salamander photoreceptors.

3 Jun 2009 Vision begins with photoisomerization of 11-cis retinal to the all-trans conformation within the chromophore-binding pocket of opsin, leading to activation of a biochemical cascade. Release of all-trans retinal from the binding pocket curtails but ... Read more...

Latest indexed articles for 'Dark Adaptation - Physiology'

These are the very latest articles for this heading:

• Techniques for extraction of depth-resolved in vivo human retinal intrinsic optical signals with optical coherence tomography. 6 Sep 2009
• Sleep and sleep homeostasis in constant darkness in the rat. 20 Jun 2009
• Beta-ionone activates and bleaches visual pigment in salamander photoreceptors. 3 Jun 2009
• Altered vision destabilizes gait in older persons. 29 May 2009
• Contribution of proximal retinal neurons to b- and d-waves of frog electroretinogram under different conditions of light adaptation. 18 May 2009
• Mesopic contrast sensitivity and ocular higher-order aberrations in eyes with conventional spherical intraocular lenses. 5 May 2009
• Rod phototransduction determines the trade-off of temporal integration and speed of vision in dark-adapted toads. 4 May 2009
• Mechanisms that limit the light stimulus frequency following through the DL-2-amino-4-phosphonobutyric acid sensitive and insensitive rod Off-pathways. May 2009
• Intraindividual comparison of aspherical and spherical intraocular lenses of same material and platform. 29 Apr 2009
• Visual acuity and contrast sensitivity in eyes implanted with aspheric and spherical intraocular lenses. 29 Apr 2009
• The action of 11-cis-retinol on cone opsins and intact cone photoreceptors. 20 Apr 2009
• c-Fos expression in the visual system of the tree shrew (Tupaia belangeri). 31 Mar 2009
• Experience-dependent regulation of TrkB isoforms in rodent visual cortex. 30 Mar 2009
• Reliability and sensitivity of the TonoLab rebound tonometer in awake Brown Norway rats. 23 Mar 2009
• Formation of all-trans retinol after visual pigment bleaching in mouse photoreceptors. 3 Mar 2009
• Intra-retinal visual cycle required for rapid and complete cone dark adaptation. 30 Jan 2009
• Reproducible measurement of macular light flash recovery time using a novel device can indicate the presence and worsening of macular diseases. 30 Jan 2009
• Network adaptation improves temporal representation of naturalistic stimuli in Drosophila eye: II mechanisms. 28 Jan 2009
• Assessing quality of life in patients with glaucoma using the Glaucoma Quality of Life-15 (GQL-15) questionnaire. 30 Dec 2008
• Defining the residual vision in leber congenital amaurosis caused by RPE65 mutations. 28 Dec 2008

See a longer list of these articles.

Technical information about 'Dark Adaptation'

Definition: Adjustment of the eyes under conditions of low light. The sensitivity of the eye to light is increased during dark adaptation.

Descriptor UI: D003623

Alternative terms: Dark Adaptation; Adaptation, Dark; Scotopic Adaptation; Adaptation, Scotopic;

Allowable Qualifiers: drug effects; genetics; immunology; physiology; radiation effects; ethics;

Tree Number: G14.640.154.371;

History Note: 72(68)