News tagged with eye cells
Scientists solve mystery of the eye
(PhysOrg.com) -- Scientists have a good overall understanding of human vision: when light enters our eyes, it is focused by the lens and strikes the retina in the back of the eye. The light causes some of ...
Nov 17, 2011 |
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Sharp-eyed robins can see magnetic fields
(PhysOrg.com) -- It has been known for decades that some birds are able to sense the Earth's magnetic field and set their direction as if following a compass heading, which is an extremely useful ability for ...
Jul 09, 2010 |
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Stimulating sight: New retinal implant developed
(PhysOrg.com) -- Inspired by the success of cochlear implants that can restore hearing to some deaf people, researchers at MIT are working on a retinal implant that could one day help blind people regain a ...
Sep 23, 2009 |
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Stem cells reverse blindness caused by burns
(AP) -- Dozens of people who were blinded or otherwise suffered severe eye damage when they were splashed with caustic chemicals had their sight restored with transplants of their own stem cells - a stunning ...
Medicine & Health / Medical research
Jun 23, 2010 |
5 / 5 (15) |
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New invisibility cloak hides objects from human view
For the first time, scientists have devised an invisibility cloak material that hides objects from detection using light that is visible to humans. The new device is a leap forward in cloaking materials, according to a report ...
Jul 27, 2011 |
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Funnel vision: New info about how cells in the eye help guide light into the retina
The eyes are marvelous instruments for converting outside reality into images lodged inside our brains. A new study of the retina, the light-sensitive region at the back of the eye, solves a mystery as to ...
May 09, 2010 |
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Researchers discover mechanism that helps humans see in bright and low light
Ever wonder how your eyes adjust during a blackout? When we go from light to near total darkness, cells in the retina must quickly adjust. Vision scientists at Washington University School of Medicine in St. ...
Medicine & Health / Neuroscience
Oct 13, 2009 |
4.9 / 5 (9) |
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Two molecules affecting brain plasticity
(PhysOrg.com) -- You wouldn't want a car with no brakes. It turns out that the developing brain needs them, too.
Medicine & Health / Neuroscience
Nov 25, 2009 |
4.9 / 5 (8) |
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Small evolutionary shifts make big impacts, study finds
(PhysOrg.com) -- In the developing fetus, cell growth follows a very specific schedule. In the eye's retina, for example, cones -- which help distinguish color during the day -- develop before the more light-sensitive ...
May 20, 2009 |
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Evolutionary bestseller in image processing
The eye is not just a lens that takes pictures and converts them into electrical signals. As with all vertebrates, nerve cells in the human eye separate an image into different image channels once it has been ...
Medicine & Health / Neuroscience
Nov 10, 2010 |
5 / 5 (7) |
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Insect eyes inspire improved solar cells
(PhysOrg.com) -- The eyes of moths, which allow them to see well at night, are also covered with a water-repellent, antireflective coating that makes their eyes among the least reflective surfaces in nature ...
Jan 20, 2011 |
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Scientists offer new insights into early eye evolution
Scientists at the University of Hawaii at Manoa's Kewalo Marine Laboratory in Honolulu have discovered light-detecting cells in the embryo of a brachiopod, a marine invertebrate, whose organization may be similar to the primitive ...
Medicine & Health / Medical research
Mar 02, 2011 |
5 / 5 (5) |
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Stem cells from patients make 'early retina in a dish'
(PhysOrg.com) -- Soon, some treatments for blinding eye diseases might be developed and tested using retina-like tissues produced from the patient's own skin, thanks to a series of discoveries reported by ...
Jun 16, 2011 |
5 / 5 (5) |
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Researchers discover that changes in bioelectric signals cause tadpoles to grow eyes in back, tail
For the first time, scientists have altered natural bioelectrical communication among cells to directly specify the type of new organ to be created at a particular location within a vertebrate organism. Using ...
Dec 08, 2011 |
5 / 5 (5) |
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Scientists discover neurons that 'mirror' the attention of others
Whether a monkey is looking to the left or merely watching another monkey looking that way, the same neurons in his brain are firing, according to researchers at the Duke University Medical Center.
Medicine & Health / Neuroscience
May 18, 2009 |
4.8 / 5 (5) |
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