I like it. I have seen very few fanfics where Ranma gets a
severe/permanent Physical disability and this one seems interesting. It would
be interesting to see Ranma cope with blindness and how the other cast members
treat him. He could still fight though because most of his opponents are very
vocal when they fight him. 
           The thing I lied most about was it is a serious fanfic but it has a
very IC portrait of how Happosai would punish/torment someone he felt desvered
a lesson. I see a lot of fanfics where Happi summons a demon of some sort to
kill Ranma. While some of these fics are very good, the change Happi's style
of punishment. Happi likes to get even by utterly humiliating is victim,
making sure no one could ever love/like/trust the said victim and the making
sure the victim lives to be 120 years old. Happi likes to see his victims live
their lives in misery. To Happi killing someonne is NO fun, their pain is so
short lived. But to take away someone's prode is how Happi gets his ultimate
revenge.