I mean if it’s a matter of accessibility then that’s different. I can’t get help for my disabilities because of accessibility. We don’t have the facilities or experts so I just deal with them as they can be worked with. Someone who lives in an area without magic or resources then would definitely have to suffer the lack of proper health care.
Being blind isn’t natural though. You’re born blind because there was a DNA replication error or in vitro trauma. Humans didn’t evolve to be blind.