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Artificial retinas: Promising leads towards clearer vision

A major therapeutic challenge, the retinal prostheses that have been under development during the past ten years can enable some blind subjects to perceive light signals, but the image thus restored is still far from being clear. By comparing in rodents the activity of the visual cortex generated artificially by implants against that produced by “natural sight”, scientists have identified two factors that limit the resolution of prostheses. Based on these findings, they were able to improve the precision of prosthetic activation.

Source: www.sciencedaily.com