Some years ago I remember reading an account of Aldous Huxley lecturing on the Bates Method. I think it was a book by a well-known skeptic (maybe Gardner or Sagan?) but I don't remember exactly.
According to this account (from my memory) he was well known to need strong glasses. But he came on stage without glasses and started reading from his notes. This was an amazing demonstration of the truth of what he was saying. But the half way through he faltered, and started peering closely at his notes. It dawned on the audience that up until that point he had been reciting, not reading, and the Bates Method hadn't worked for him after all.
Does anyone know more about this story?