Information for the public
There is not enough evidence to be sure about how well this procedure works or how safe it is. For this reason, it should only be done as part of a research study.
Your health professional can only offer you this procedure as part of a research study. Details of your procedure will be collected.
NICE said that this procedure is intended for people who have no useful sight and no other treatment options. It noted that even small improvements in sight may help these people. NICE also noted the importance of psychological counselling for patients, so that they have realistic expectations about the procedure.