thank you for quoting and making it clear what is being responded to.Quote
Ray: Sam's life had an especially happy ending, since the ophthalmologists at the nearby Jules Stein Eye Institute found a way to surgically partially restore Sam's eyesight. He joyfully took trips all over the world to actually see all the places he had only fantasied about for over 70 years.
certainly, the future for all kinds of sight loss is looking much better.
Re braille and electronic software etc: One thing braille has over all other devices is its lack of need for electricity!