News tagged with eye
Babies show visual consciousness at five months
(Medical Xpress)—A new study by scientists in France and Denmark has identified a neurological marker in the brain of babies as young as five months that is associated with visual consciousness, or the ...
Neuroscience
Apr 19, 2013 |
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One region, two functions: Brain cells' multitasking key to understanding overall brain function
A region of the brain known to play a key role in visual and spatial processing has a parallel function: sorting visual information into categories, according to a new study by researchers at the University ...
Neuroscience
Mar 06, 2013 |
4.8 / 5 (4) |
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24 new genes for short-sightedness identified
An international team of scientists led by King's College London has discovered 24 new genes that cause refractive errors and myopia (short-sightedness).
Genetics
Feb 10, 2013 |
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Poor sleep in old age prevents the brain from storing memories
The connection between poor sleep, memory loss and brain deterioration as we grow older has been elusive. But for the first time, scientists at the University of California, Berkeley, have found a link between these hallmark ...
Neuroscience
Jan 27, 2013 |
4 / 5 (8) |
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Light exposure during pregnancy key to normal eye development
New research in Nature concludes the eye – which depends on light to see – also needs light to develop normally during pregnancy.
Ophthalmology
Jan 16, 2013 |
4 / 5 (4) |
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Study: To get the best look at a person's face, look just below the eyes
They say that the eyes are the windows to the soul. However, to get a real idea of what a person is up to, according to UC Santa Barbara researchers Miguel Eckstein and Matt Peterson, the best place to check ...
Psychology & Psychiatry
Nov 26, 2012 |
4.5 / 5 (12) |
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Engineering a photo-switch for nerve cells in the eye and brain
(Medical Xpress)—Chemists and vision scientists at the University of Illinois at Chicago have designed a light-sensitive molecule that can stimulate a neural response in cells of the retina and brain—a ...
Medical research
Nov 14, 2012 |
4.8 / 5 (4) |
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Brain may 'see' more than the eyes, study indicates
(Medical Xpress)—Vision may be less important to "seeing" than is the brain's ability to process points of light into complex images, according to a new study of the fruit fly visual system currently published ...
Neuroscience
Nov 01, 2012 |
4.4 / 5 (14) |
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Stem cells improve visual function in blind mice
An experimental treatment for blindness, developed from a patient's skin cells, improved the vision of blind mice in a study conducted by Columbia ophthalmologists and stem cell researchers.
Medical research
Oct 01, 2012 |
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Eye implants make vision-restoring progress
(Medical Xpress) -- "I was blind once but now I can see.” The words are no longer the sole property of religious testimony and literature. Medical progress is being made in the restoration of vision as ...
Ophthalmology
Jul 18, 2012 |
4.6 / 5 (10) |
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Study identifies how muscles are paralyzed during sleep
Two powerful brain chemical systems work together to paralyze skeletal muscles during rapid eye movement (REM) sleep, according to new research in the July 11 issue of The Journal of Neuroscience. The finding may help scient ...
Neuroscience
Jul 11, 2012 |
5 / 5 (1) |
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Same musicians: Brand new tune
A small ensemble of musicians can produce an infinite number of melodies, harmonies and rhythms. So too, do a handful of workhorse signaling pathways that interact to construct multiple structures that comprise ...
Medical research
May 14, 2013 |
5 / 5 (2) |
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Bionic eye maker has vision of the future
Robert Greenberg got tired of hearing from senior engineers that it wasn't possible to build his product idea: a bionic eye that gives sight to the blind. "A lot of the folks straight out of school didn't know any better, ...
Medical research
May 06, 2013 |
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Study provides clarity on supplements for protection against blinding eye disease
Adding omega-3 fatty acids did not improve a combination of nutritional supplements commonly recommended for treating age-related macular degeneration (AMD), a major cause of vision loss among older Americans, ...
Ophthalmology
May 06, 2013 |
3 / 5 (2) |
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Research identifies gene mutations associated with nearsightedness
People have long taken for granted that glasses and contact lenses improve vision for nearsightedness, but the genetic factors behind the common condition have remained blurry. Now researchers at Duke Medicine ...
Genetics
May 02, 2013 |
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Eye
Eyes are organs that detect light, and send signals along the optic nerve to the visual and other areas of the brain[citation needed]. Complex optical systems with resolving power have come in ten fundamentally different forms, and 96% of animal species possess a complex optical system. Image-resolving eyes are present in cnidaria, molluscs, chordates, annelids and arthropods.
The simplest "eyes", such as those in unicellular organisms, do nothing but detect whether the surroundings are light or dark, which is sufficient for the entrainment of circadian rhythms. From more complex eyes, retinal photosensitive ganglion cells send signals along the retinohypothalamic tract to the suprachiasmatic nuclei to effect circadian adjustment.
For more information about Eye, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
