optogenetics is the name given to a process that has just been carried out on a blind lady in Texas. She suffers from pigmentosa which is a disease that kills off the retinas light sensitive cells. If the trials are successful, the light sensing cells will be created again, and sight will be restored.
The ganglion cells in the lady’s eyes will be made light sensitive, and this is as a result of DNA from algae that is light sensitive itself being injected into her eye. There is hope that if this is successful, it could be used to treat Schizophrenia and Parkinson’s.