On March 18th, 2006, one day after the fourth of what would be five operations on the only eye which gave me partial sight, a doctor removed the final bandage and I was totally blind. I could not see shadows. I could not see the doctor's head lamp. I was totally blind. In medical terms, I am considered functionally blind and the one certainty I was later to learn was that I would never see my wife's face again. In the years prior to the complete loss of my sight, I imagined what it would be like to be completely...