The therapy that helped blind mice and dogs respond to light stimulus could restore sight to people who suffer from diseases such as retinitis pigmentosa, gizmag.com reports. The research, published in the journal Proceedings of the National Academy of the Sciences, describes the use of chemicals known as photoswitches, which change shape when hit with light.
Photoswitches open the channels that activate retinal cells. In the research, treated mice could distinguish between steady and flashing light, and dogs with late-stage retinal degeneration also regained some sensitivity to light.
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