Results 11 to 20 of about 72,833 (298)
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2014 Cone visual pigments are visual opsins that are present in vertebrate cone photoreceptor cells and act as photoreceptor molecules responsible for photopic vision. Like the rod visual pigment rhodopsin, which is responsible for scotopic vision, cone visual pigments contain the chromophore 11-cis-retinal, which undergoes cis-trans isomerization resulting
Imamoto, Yasushi, Shichida, Yoshinori
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Bat eyes have ultraviolet-sensitive cone photoreceptors. [PDF]
PLoS ONE, 2009 Mammalian retinae have rod photoreceptors for night vision and cone photoreceptors for daylight and colour vision. For colour discrimination, most mammals possess two cone populations with two visual pigments (opsins) that have absorption maxima at short
Brigitte Müller +5 more
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Enhanced S-Cone Syndrome: Elevated Cone Counts Confer Supernormal Visual Acuity in the S-Cone Pathway [PDF]
Investigative Opthalmology & Visual Science, 2023 To measure photoreceptor packing density and S-cone spatial resolution as a function of retinal eccentricity in patients with enhanced S-cone syndrome (ESCS) and to discuss the possible mechanisms supporting their supernormal S-cone acuity.We used an adaptive optics scanning laser ophthalmoscope (AOSLO) to characterize photoreceptor packing.
Wang, Yiyi +4 more
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Ligand Binding Mechanisms in Human Cone Visual Pigments [PDF]
Trends in Biochemical Sciences, 2019 Vertebrate vision starts with light absorption by visual pigments in rod and cone photoreceptor cells of the retina. Rhodopsin, in rod cells, responds to dim light, whereas three types of cone opsins (red, green, and blue) function under bright light and mediate color vision.
Srinivasan, Sundaramoorthy +3 more
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Clinical Ophthalmology, 2018 John D Rodriguez,1 Keith Lane,1 David A Hollander,1,2 Aron Shapiro,1 Sunita Saigal,1 Andrew J Hertsenberg,1 Garrick Wallstrom,3 Divya Narayanan,1 Endri Angjeli,1 Mark B Abelson1,4 1Ora, Inc., Andover, MA, USA; 2Jules Stein Eye Institute, University of ...
Rodriguez JD +9 more
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The kinetics of cone visual pigments in man [PDF]
Vision Research, 1971 Abstract Rushton's general kinetic equation for human cone pigments is tested by estimating the photolysis rate at equilibrium from the initial photolysis rate and comparing it to the equilibrium rate of regeneration measured immediately after the bleaching light is turned off.
Alpern, Mathew +2 more
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Metabolic rescue of cone photoreceptors in retinitis pigmentosa
Taiwan Journal of Ophthalmology, 2021 Retinitis pigmentosa (RP) encompasses a group of inherited retinal dystrophies characterized by the primary degeneration of rod and cone photoreceptors. It is a leading cause of visual disability, with an incidence of ~1 in 7000 persons. Although most RP
Henry J Kaplan +3 more
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Visual Pigments of Goldfish Cones [PDF]
The Journal of General Physiology, 1974 Freshly isolated retinal photoreceptors of goldfish were studied microspectrophotometrically. Absolute absorptance spectra obtained from dark-adapted cone outer segments reaffirm the existence of three spectrally distinct cone types with absorption maxima at 455 ± 3,530 ± 3, and 625 ± 5 nm.
Ferenc I. Hárosi, Edward F. MacNichol
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Developmental dynamics of cone photoreceptors in the eel [PDF]
, 2009 Background: Many fish alter their expressed visual pigments during development. The number of retinal opsins expressed and their type is normally related to the environment in which they live.
Bowmaker, JK +11 more
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APPLICATION OF DANDELIN’S THEOREM TO DRAWING CIRCLES IN PARALLEL PERSPECTIVE
Journal of Industrial Design and Engineering Graphics, 2017 The paper analyses a problem of great theoretical importance in practice of perspective: the nature of the perspective of a circle from the horizontal plane according to the relative position between the spectator plane (parallel to the picture plane ...
Daniel Dobre
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