WOW! I know the pain of a serious cat bite. And the fear of it happening again.
With no experiene with a totally blind cat I will not pretend to have advice. But you did not adopt him not knowing his personality, so I agree with the "too much too soon" and "sensory over load" theories.
Your very best thing to do is speak to REAL experts in behavior of cats and especially blind ones.
Best of luck, and hang in their. The end results will be well worth the trouble.