I am stating a hypothetical question based on a guaranteed cure if it were the actual case.
Yes, but your hypothesis is flawed, simply b/c etoloigies are so numerous, that there will never be a "wham bam" you're cured cure.
I support cures 100% for ex hearing, ex sighted, and ex whatever people. I can imagine that it must be very difficult for someone to adjust to an aquirred disabilty.
I also support cures for mental issues. (including mental retardation, autism, scheizophernia, depression, Alizhemiers, etc)
BUT, I do not support curing blindness, hearing loss, and other relatively mild pediatric disabilties (I DO support curing/amerirating profound and severe disabilties like the kids who are functionally/mentally babies and toddlers or who are medically fragile)
Kids can adapt very easily to being dhh, or blind/low vision or wheelchair/walker users.
For them it is normal. How do you know that your hypothetical cure wouldn't cause worse damage? (eg improve hearing, but screw things up so that they have painful hyperacusis or whatever)