Rats could respond to a sound converted into light after their nerve cells were genetically modified. The experiment suggests a similar approach could help restore hearing in people
Source:
https://www.newscientist.com/article/2249633-hearing-restored-in-rats-by-modifying-ear-cells-to-respond-to-light/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home