All the advances etc in the world in China etc. But it will NEVER come here to be available because it would have to become FDA approved. Safe gaurds intact to prevent harm and protect those that play by our Rules. So glad the kid can see. But it was not covred by insurance, nor was the airfare, lodging etc. In the real world where most of the middle class live in America and the rest of the world for that matter, they will continue to wait for technology. right or wrong, left or right, it is coming, Advanced is partnered with CHA to fast trak and Advanced is the Arm of the equation that is abiding by the rules and the limitations and or ways of doing business in the U.S. it is what it is.