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Tag: "retinal" at biology news

Gene therapy works in mice to prevent blindness that strikes boys

...caused by single gene defects, including a host of retinal disorders. Retinoschisis is usually first detecte...lems cause reading difficulties. In a healthy eye, retinal cells secrete a protein called retinoschisin, or RS1, which acts like glue to connect the layers of ...

Color perception is not in the eye of the beholder: It's in the brain

...lor cones in the eyes of living humans with varied retinal structure. Each subject was asked to tune the color of a disk of light to produce a pure yellow light that was neither reddish yellow nor greenish yellow. Everyone selected nearly the same wavelength of yellow, showing an obvious consensus over wha...

Retina adapts to seek the unexpected, ignore the commonplace

...rding of signals that are less useful, and dynamic retinal adaptation provides a means of stripping from the ...ster and his co-authors examined neural signals in retinal ganglion cells, which convey visual images from the eye to the brain. These cells generally record l...

Scientists focus on 'dwarf eye'

...MFRP was recently identified in mice as a cause of retinal degeneration, not extreme farsightedness," he said... the MFRP protein is located on the surface of the retinal pigment epithelium (RPE), which is located beneath the retina and helps maintain photoreceptors, the...

Microscopic brain imaging in the palm of your hand

...oved contrast agent that is most commonly used for retinal exams in humans. The fluorescein labeled the blood plasma so the vessels in the brain could be clearly seen. There are many different options for further exploration, now that the technique has been successfully demonstrated, ranging from biomedica...

Six previously blind patients detect light, motion, identify objects with retinal prostheses

...e first six patients implanted with an intraocular retinal prosthesis-more popularly referred to as an artifi...Both AMD and RP destroy vision by annihilating the retinal cells that allow light to be translated into recognizable images. Second Sight's intraocular retina...

Blink, and the brain misses it

...nking suppresses the neural response to unchanging retinal stimulation." Publishing in Current Biology, Vol. 15, 1296?300, July 26, 2005. DOI 10.1016/j.cub.2005.06.025 www.current-biology.com ...

Brain May Be Less Plastic Than Hoped

...ate brain displays less flexibility in response to retinal injury than previously thought, according to a new... the primary visual cortex that corresponds to the retinal injury recover to pre-lesional levels in the months following the lesion??said Smirnakis. “The answe...

Ophthalmologists implant five patients with artificial silicon retina microchip

...icants. The implants are designed for people with retinal diseases such as macular degeneration and retiniti...n persons with retinitis pigmentosa (RP) and other retinal diseases. The microsurgical procedure starts with three tiny incisions in the white part of the sub...

Ophthalmologists Use Artificial Silicon Retina Microchip To Treat Vision Loss

...icants. The implants are designed for people with retinal diseases such as macular degeneration and retiniti...n persons with retinitis pigmentosa (RP) and other retinal diseases. The microsurgical procedure starts with three tiny incisions in the white part of the sub...

Emory Eye Center Implants Its First Retinal Chips In Patients With Retinitis Pigmentosa

...ondition that is hereditary and causes progressive retinal degeneration in both eyes. It is a general term fo...nt and an established patient base of degenerative retinal diseases, we were able to be a part of this important study." Pre- and post-surgery patients are ev...

Researchers discover way to make cells in the eye sensitive to light

...blindnessphotoreceptors are lost entirely, but the retinal ganglion cells, thecells which signal to the brain...ith engineers from Imperial todevelop a functional retinal prosthesis which would allow theinformation from the light responsive cells to be used by the brain ...

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