Yes in the USA its still investigation. Things go slower due to the litiginous nature of the US lawsuit industry.
JCH MD
I'm not sure if this is the same thing, but there is an article from the NY Times about telescope implantation for the visually impaired (mostly for those with MD). Apparently, it's already been approved and is being used in Europe, but has yet to be given clearance from the FDA here in the U.S.
Here's the address to view the article:
http://www.nytimes.com/2009/07/19/business/19novel.html
That's not new and has been used experimentally in the USA for 2-4 years. In fact one of the surgeons in my group was part of one of the FDA studies. The verdict is still out. Some people feel they benefited a great deal while others didn't
JCH MD