I use a cane, is becoming Orthoptist right for me?

Hi all I am really trying to find a career that is right for me. I think perhaps becoming an Orthoptist might work. I use a cane and have used a wheelchair in the past it's been so bad. But luckily I have recently gotten better.

So my two main questions are.

1. Out of an 8 hour shift how many hours are spent either standing or walking as an Orthoptist?

2. Do you think this is a field I can work in?

Thanks a million.