Sight
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ScienceThe subjective sense that time moves faster as we get older is a universal one, and over the years scientists have proffered a number of different explanations as to why this happens. A new and strange hypothesis attempts to explain the phenomena, and it has to do with our aging brains.
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As far as we know, the largest bird of all time was the now-extinct elephant bird. The flightless animal stood over 10 feet tall (3 m), and was native to Madagascar. Little is known about how it lived, although new research indicates that it was likely nocturnal, and had little if any eyesight.
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Repairing people's sense of sight by way of retinal implants is a field of research that is seeing some rather promising advances. Now researchers say they have broken new ground in the area, which brings with it the prospect of more successful integration in the human body.
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Researchers have been able to restore partial vision in mice by regenerating previously severed optic-nerve cables. It’s the first time researchers have succeeded in restoring important aspects of vision in mammals, and the breakthrough could lead to future work that restores sight in the blind.
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Advances in technology have opened up some important new ways for the visually-impaired to consume printed content. Researchers have now unveiled a low-cost reading device that processes graphical information, enabling the blind to digest documents such as bills, PDFs, graphs and bank statements.
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Researchers from the Faculty of Engineering at Israel's Bar Ilan University have developed a prototype contact lens which processes digital images and translates them into tactile sensations to be felt on the user's cornea, allowing them to form a picture of their physical surroundings.
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If someone has difficulty hearing, they can use a hearing aid to boost the level of sounds reaching their ear. If someone has limited vision, however, it's not like they can just use an electronic "seeing aid" ... right? Actually, that's just what eSight is.
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The Argus II "bionic eye" has received U.S. market approval from the Food and Drug Administration (FDA).
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Scientists have discovered that corneal eye cells may be able to replace non-functioning retinal cells, thus preventing or curing blindness.
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A new retinal prosthesis could allow the blind to see, by using pulses of near-infrared light to activate the retinal neurons in their eyes.
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The Argus II Retinal Implant from California-based company Second Sight has become the first retinal prosthesis for treatment of the blind approved for sale in Europe.
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ScienceResearchers are growing fractal nanoflowers from metal nanoparticles, that may someday be used to restore sight to the blind.
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