Ashley N. Rice, [email protected] Computer-generated holography could artificially stimulate cells in the eye and even lead to a new strategy for bionic vision restoration, say researchers at Technion-Israel Institute of Technology. Holography could be used in conjunction with optogenetics on damaged retinal nerve cells. In conditions such as retinitis pigmentosa, which affects about 1 in 4000 people in the US, these light-sensing cells degenerate, leading to blindness. The optogenetic approach photosensitizes the nerve cells so that they can be activated by intense pulses of light. 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