(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
4.3 / 5 (71)
14
|
(Phys.org)—The eye, whether in humans or other animals, is truly one of nature's most sophisticated advancements, able to convert light into signals the brain can interpret as imagery, all in real time. ...
Sep 14, 2012
5 / 5 (10)
2
|
In a breakthrough for nanotechnology and multiple sclerosis, a biodegradable nanoparticle turns out to be the perfect vehicle to stealthily deliver an antigen that tricks the immune system into stopping its attack on myelin ...
Nov 18, 2012
4.8 / 5 (38)
19
|
(Phys.org) -- In the eye, the retina is the light sensitive tissue that lines its inner surface; packed with ganglion neurons, its job is to convert incoming information to something that the brain can understand. ...
Aug 14, 2012
5 / 5 (3)
0
|
(Phys.org) —New research conducted at Queen's University has discovered that polarized light vision, which is used for navigation and orientation by rainbow trout, changes with age.
Apr 25, 2013
not rated yet
0
|
(PhysOrg.com) -- University of Oregon researcher Richard Taylor is on a quest to grow flowers that will help people who've lost their sight, such as those suffering from macular degeneration, to see again.
May 05, 2011
5 / 5 (10)
4
|
Researchers at Stanford University were able to use light to induce normal patterns of muscle contraction, in a study involving bioengineered mice whose nerve-cell surfaces are coated with special light-sensitive proteins.
Sep 26, 2010
4.7 / 5 (3)
3
|
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
4.9 / 5 (11)
4
|
Squid's colorful, changeable skin enables the animal—and their close relatives, cuttlefish and octopus—to display extraordinary camouflage, the speed and diversity of which is unmatched in the animal ...
Aug 27, 2012
5 / 5 (2)
1
|
Ask anyone who suffers from migraine headaches what they do when they're having an attack, and you're likely to hear "go into a dark room." And although it's long been known that light makes migraines worse, the reason why ...
Jan 10, 2010
4.9 / 5 (11)
2
|
Even the most skilled and steady surgeons experience minute, almost imperceptible hand tremors when performing delicate tasks. Normally, these tiny motions are inconsequential, but for doctors specializing ...
Sep 27, 2012
5 / 5 (5)
2
|
(Phys.org)—When placed inside a material, optical fibers act like artificial nerves, transmitting valuable information about a structure's state of fatigue and wear. A new technique developed at EPFL makes ...
Aug 29, 2012
5 / 5 (3)
0
|
(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 ...
Jun 23, 2010
5 / 5 (15)
0
For two decades, Eric Selby had been completely blind and dependent on a guide dog to get around. But after having an artificial retina put into his right eye, he can detect ordinary things like the curb and ...
Feb 14, 2011
5 / 5 (9)
4
In a study published today in the Proceedings of the National Academy of Sciences (Early Edition ahead of print), a team of researchers from the Kennedy Krieger Institute and four collaborating institutions, identified a new ...
Jan 03, 2011
5 / 5 (3)
2
|
