Disabilities in HP?

[shanna]

No: HPFGUIDX 60129

Hello everyone!
I'm coming out of lurkdom for a moment with a random question I just thought
of.  I'm curious what would happen if for some reason a disabled person were
to attend Hogwarts or another similar magical institution.  I realize this
is completely hypothetical and not likely to ever be included in canon, but
as someone with a visual disability, I have to wonder.

Would magic be a help or a hindrance to a disabled person?  I can see both
sides to this.  The summoning charm, for example, would definitely come in
handy at times!  Of course it could be a problem if I were to try dueling,
at least I think so anyway.   I'm curious what everyone here thinks.  I hope
this question makes sense!  Thanks in advance for your time!
Shanna