Results 131 to 140 of about 283,262 (306)

Extraocular Photoreception in Optic Lobes, Suckers, and Skin of Octopus vulgaris

open access: yesIntegrative Zoology, EarlyView.
Evidence of extra‐ocular photoreception in Octopus vulgaris (a) Diagram of the O. vulgaris different tissues considered: SPB, sucker proximal big; SPL, sucker proximal large; SM, sucker medium; SD, sucker distal; SK, skin; OL, optic lobes; RT, retina; (b‐d) Gene expression analysis of Ov‐GRK1 (red), Ov‐retinochrome (green), Ov‐rhodopsin (blue) mRNA ...
Valeria Maselli   +7 more
wiley   +1 more source

Low‐contrast visual acuity versus low‐luminance visual acuity in choroideremia

open access: yesClinical and Experimental Optometry, EarlyView., 2020
Clinical relevance Choroideremia is a progressive X‐linked inherited rod‐cone dystrophy. Patients present with nyctalopia and progressive visual field loss, but visual acuity remains well preserved early on. This study showed that low‐luminance visual acuity may be a useful clinical outcome measure during earlier disease stages.
Laura J Wood   +6 more
wiley   +1 more source

Retinal Pigmentation [PDF]

open access: yesProceedings of the Royal Society of Medicine, 1930
openaire   +2 more sources

Evaluation of the role of the retinal G protein-coupled receptor (RGR) in the vertebrate retina in vivo.

open access: yes, 2003
The retinal G protein-coupled receptor (RGR) is a protein that structurally resembles visual pigments and other G protein-coupled receptors. RGR may play a role as a photoisomerase in the production of 11-cis-retinal, the chromophore of the visual ...
Maeda, T.   +11 more
core   +1 more source

Interpreting the structure–function relationship in high myopia‐associated glaucoma: A review

open access: yesActa Ophthalmologica, EarlyView.
Abstract Visual field (VF) interpretation in high myopia‐associated glaucoma (HMG) is challenging due to frequent structure–function discordance and coexisting myopia‐related changes. These changes may reduce the reliability of conventional structure–function mapping and increase the risk of misclassifying non‐glaucomatous VF abnormalities as ...
Ruby S. Chan   +6 more
wiley   +1 more source

Yellow ZnxNi1-xWO4 pigments obtained using a polymeric precursor method

open access: yes, 2008
New tungstate-based ceramic pigments, displaying ZnxNi1-xWO4 stoichiometry, were obtained at low temperature using a polymeric precursor method. The powder precursors were milled in an attritor mill in an alcoholic rnedium and heat treated for 12 h ...
Maurera Maria Aldeiza, M. A.   +11 more
core   +1 more source

Junctional sensitivity and atrophy progression rate of geographic atrophy secondary to age‐related macular degeneration

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To determine the relationship between the baseline junctional retinal sensitivity measured with microperimetry and the atrophy progression rate in eyes with geographic atrophy (GA) secondary to age‐related macular degeneration. Methods In this prospective cohort study, patients with GA were examined with fundus autofluorescence (FAF ...
Alexander Kai Thomsen   +5 more
wiley   +1 more source

Analytical HPLC-separation of retinoid derivatives of natural and 3,4-didehydro series

open access: yesТонкие химические технологии, 2014
The goal of the present study was the development of composition analysis method for vision pigments chromophore groups of different animals with the use of high performance liquid chromatography as well as the development of synthetic method for all-E-3,
N. E. Belikov   +5 more
doaj  

Light Pollution and Oxidative Stress: Effects on Retina and Human Health

open access: yesAntioxidants
Visible light refers to the frequencies within the electromagnetic spectrum that humans can see, encompassing radiation with wavelengths falling between 380 nm to 760 nm. The energy of a single photon increases with its frequency.
Rocío Salceda
doaj   +1 more source

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