Californian researchers are now using light to control biological nanomolecules and proteins. They think it can help them to develop treatments for eye diseases, such as the loss of the light detectors in the retina which is a major cause of blindness. So they envision to put some of their nano-photoswitches in the cells of the retina, 'restoring light sensitivity in people with degenerative blindness such as macular degeneration.'
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