It is estimated that 160 million people have partially impaired vision on this planet. I hope sooner than later the proliferation of this technology and the economics of scale will allow all of them to benefit from this wonderful technology. Life changing! The only annoying aspect is when I am searching for my pair of glasses in the dark after the alarm went off in the morning, only to realize after some time that the reason i cannot find them is i do not need them anymore!!! Thank you for your help!