Retinitis pigmentosa (RP) is a cluster of genetically determined eye disorders that cause visual defects such as night blindness and narrowing of the field of vision, due to progressive loss of rod photoreceptors. As many ...
Cell & Microbiology
Mar 9, 2011
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People with congenital stationary night blindness (CSNB) are unable to distinguish objects in dim-light conditions. This impairment presents challenges, especially where artificial lighting is unavailable or when driving ...
Veterinary medicine
Mar 23, 2022
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Larvae of the marine bristle worm Platynereis dumerilii orient themselves using light. Early in their development, these larvae swim towards the light to use surface currents for their dispersal. Older larvae turn away from ...
Plants & Animals
Jun 10, 2014
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(PhysOrg.com) -- University of British Columbia researchers have uncovered the unique survival mechanisms of a marine organism that may be tiny, but in some ways has surpassed sharks in its predatory efficiency.
Cell & Microbiology
Feb 8, 2011
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How our eyes detect and respond to changes in light intensity is determined by specialized cells in the eye called photoreceptors. In addition to converting light into electrical signals, effectively allowing us to see, rod-shaped ...
Biotechnology
Nov 20, 2019
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140
An elusive biological cycle in the eye - the daily disposal and regeneration of the end tips of photoreceptor cells - has been captured in images for the first time in a living human eye. Photoreceptors are light-sensitive ...
Optics & Photonics
Oct 13, 2016
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15
Light provides the energy that plants and other photosynthetic organisms need to grow, which ultimately yields the metabolites that feed all other organisms on the planet. Plants also rely on light cues for developing their ...
Biotechnology
Dec 17, 2019
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81
(Phys.org)—New research which could help to deter and conserve sharks has confirmed that many of the ocean predators are probably completely colour blind.
Plants & Animals
Sep 19, 2012
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Biologists at the University of Cincinnati discovered that underfed jumping spiders lose light-sensitive cells that are key to their vision.
Plants & Animals
Apr 20, 2023
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53
(Phys.org) —Despite being night creatures, Australian bull ants have trouble finding their way home in the dark. Scientists at Australia's Vision Centre (VC) have found that bull ants that travel at night take much longer ...
Plants & Animals
May 28, 2013
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