I'll modestly add that my sight was getting better and wasn't really an obstacle. It started with an activity of carbon ink large format B&W art prints for other photographers... then I became one too.
The "irony" didn't appear to me at that time, someone had to tell me it was ironic!
Why do you guys downvote - is it because the comment sounded snarky? It wasn't meant to be, I think it is (obviously) an impressive feat to work as a photographer when your eye sight is severly limited.
Impressive.