I just wanted to add the comment, that I have now just finished reading “Crashing Through” from Robert Kurson. Thank you very much for the recommendation, the book is very informative as well as emotional. Kurson does a great job explaining this fascinating case study of long-term vision deprivation as well as delivering a very touching real-life account of a very exceptional person. I enjoyed it both for its science as well as for the very emotional biographical account.