I've done it, and it's not that hard. Anything that you would normally write or draw on the whiteboard to explain the problem, you just explain verbally instead. I found it helpful to write everything out on paper anyway to keep my explanation organized.
The candidate brought along their own laptop with a screen reader and a nifty Braille display, so when it was time to actually write some code, they just fired up Emacs and we were good to go.
The candidate brought along their own laptop with a screen reader and a nifty Braille display, so when it was time to actually write some code, they just fired up Emacs and we were good to go.