The photovoltaic chip is implanted under the retina in a blind rat (upper right corner) – it is comprised of an array of photodiodes (center and lower left) (Image: Palanker Laboratory/Stanford University)
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 (Image via Shutterstock)
Age-related macular degeneration is the leading cause of blindness in North America, while retinitis pigmentosa causes approximately 1.5 million people worldwide to lose their sight every year. Individuals afflicted with retinal degenerative diseases such as these might someday be able to see again, however, thanks to a device being developed at California’s Stanford University. Scientists there are working on a retinal prosthesis, that uses what could almost be described as miniature solar panels to turn light signals into nerve impulses.
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