When sighted people cover their eyes or find themselves in a dark place, this is something that's very terrifying for us. And so in general, we assume that this is what blindness means. But of course,...
Aversion toward the blind exists for the same reason that most prejudices exist: lack of knowledge. Ignorance is a powerful generator of fear. And fear slides easily into aggression and contempt.
We always think, 'Well, for a person who's blind, it must be an amazing, joyful miracle if by some chance their sight is restored to them.' Now, this may be true for blind people who lost their vision...