Tag: photoreceptors

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What the Photoreseptor Outer Segment Length Tells Us

Novel retina morphology studies have been successfully introduced thanks to recent developments in ocular imaging technology. It’s the most frequent method for displaying the Spectral domain optic coherence tomography retinal layers. On SD-OCT, the external limiting membrane (ELM), inner segment ellipsoid (ISel, previously known as the junction between the inner and outer segments (IS/OS junction)),…
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June 29, 2021 0

Cone-Like Functional Properties of cGMP-Gated Channels in Rod-Like Retinal Photoreceptors of Nocturnal Geckoes

Nocturnal geckoes’ retinas contain only scotopic photoreceptors with rod-shaped outer segments and light sensitivity close to that of retinal rods of other lower vertebrate organisms. These cells, however, are not rods, but are originally derived from cones of ancestral diurnal geckoes in cone-only retinas as a result of evolutionary pressure that forced adaptation to nocturnal…
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January 4, 2021 0