Quantcast
Last updated on April 20, 2014 at 17:20 EDT

Latest Visual system Stories

2012-05-21 10:23:32

Findings in mice suggests hope for patients with glaucoma, optic nerve damage BOSTON, May 21, 2012 /PRNewswire-USNewswire/ -- Researchers have long tried to get the optic nerve to regenerate when injured, with some success, but no one has been able to demonstrate recovery of vision. A team at Boston Children's Hospital reports a three-pronged intervention that not only got optic nerve fibers to grow the full length of the visual pathway (from retina to the visual areas of the brain), but...

2012-05-21 06:25:23

OULU, Finland, May 21, 2012 /PRNewswire/ -- More evidence of the effectiveness of bright light directed at the brain A new study by Oulu University found large amounts of a light-sensitive OPN4-protein, melanopsin [http://www.valkee.com/uk/science.html#navigation ], in the human brain. The mood-enhancing influence and circadian pacemaking properties of bright light when administered through eyes has been shown in earlier studies to be based on the OPN4-protein. In those...

Two Blind Men Receive Some Sight Through Eye Implants
2012-05-04 05:05:10

Two blind men have received sight for the first time in years due to new advances in medical science. The Oxford Eye Hospital and King's College Hospital in London have been carrying out a clinical trial that helps restore sight to the blind, at least partially, through eye implants. Chris James and Robin Millar lost their vision due to a condition known as retinitis pigmentosa, which is when the photoreceptor cells at the back of the eye eventually cease to function. A 0.12-inch...

Women Have Bigger Pupils Than Men
2012-04-26 10:23:25

From an anatomical point of view, a normal, non-pathological eye is known as an emmetropic eye, and has been studied very little until now in comparison with myopic and hypermetropic eyes. The results show that healthy emmetropic women have a wider pupil diameter than men. SINC Normal, non-pathological emmetropic eyes are the most common type amongst the population (43.2%), with a percentage that swings between 60.6% in children from three to eight years and 29% in those older than 66....

How Your Eyes Deceive You
2012-04-24 05:02:24

People rely on their eyes for most things they do — yet the information provided by our visual sensing system is often distorted, unreliable and subject to illusion. Researchers at The Vision Centre, Australia, are throwing new light on the tricks the brain plays on its owner as it struggles to make sense of the visual and other sensory signals it constantly receives. “We tend to regard what we see as ℠the real world´,” says Dr Isabelle Mareschal, a...

2012-04-18 21:29:15

Scientists funded by the Medical Research Council (MRC) have shown for the first time that transplanting light-sensitive photoreceptors into the eyes of visually impaired mice can restore their vision. The research, published in Nature, suggests that transplanting photoreceptors — light-sensitive nerve cells that line the back of the eye — could form the basis of a new treatment to restore sight in people with degenerative eye diseases. Scientists from UCL Institute of...

2012-04-04 12:19:11

Working in mice, scientists at Washington University School of Medicine in St. Louis have devised a treatment that prevents the optic nerve injury that occurs in glaucoma, a neurodegenerative disease that is a leading cause of blindness. Researchers increased the resistance of optic nerve cells to damage by repeatedly exposing the mice to low levels of oxygen similar to those found at high altitudes. The stress of the intermittent low-oxygen environment induces a protective response called...

Seeing Beyond The Visual Cortex
2012-04-03 04:00:35

[ Watch the Video ] Research could lead to new rehabilitative therapies when visual cortex is damaged It's a chilling thought--losing the sense of sight because of severe injury or damage to the brain's visual cortex. But, is it possible to train a damaged or injured brain to "see" again after such a catastrophic injury? Yes, according to Tony Ro, a neuroscientist at the City College of New York, who is artificially recreating a condition called blindsight in his lab. "Blindsight...

2012-04-01 10:20:04

SAN FRANCISCO, April 1, 2012 /PRNewswire/ -- Expanding upon its traditional focus on User Experience (UX) and Online Market Research, the new NX Testing Platform allows companies to visualize which neuron pathways are excited by creative stimuli and online interactions of all types. Userlytics Corporation has announced the launch of the first Neuro Experience (NX) Testing Platform. The platform allows companies to receive real time aggregated neural heat maps of the mental path-ways that are...

2012-03-29 23:22:34

Scans reveal astonishingly simple 3D grid structure -- NIH-funded study The brain appears to be wired more like the checkerboard streets of New York City than the curvy lanes of Columbia, Md., suggests a new brain imaging study. The most detailed images, to date, reveal a pervasive 3D grid structure with no diagonals, say scientists funded by the National Institutes of Health. "Far from being just a tangle of wires, the brain's connections turn out to be more like ribbon cables --...


Latest Visual system Reference Libraries

Eye
2013-04-30 13:41:59

1. vitreous body 2. ora serrata 3. ciliary muscle 4. ciliary zonules 5. canal of Schlemm 6. pupil 7. anterior chamber 8. cornea 9. iris 10. lens cortex 11. lens nucleus 12. ciliary process 13. conjunctiva 14. inferior oblique muscle 15. inferior rectus muscle 16. medial rectus muscle 17. retinal arteries and veins 18. optic disc 19. dura mater 20. central retinal artery 21. central retinal vein 22. optic nerve 23. vorticose vein 24. bulbar sheath 25. macula 26. fovea 27. sclera 28....

More Articles (1 articles) »