The spectrum of visually impaired and "tabs vs spaces"

A new-to-me angle came up in a discussion: https://www.reddit.com/r/programming/comments/efz9fw/computerphile_tabs_or_spaces/fc3ntnv?utm_medium=android_app&utm_source=share
Describing how two visually impaired people required tabs. I hadn’t come across this argument, personally, and so thought to highlight it.
Doing a quick search, I could find more evidence of tools and editor features to reindent as spaces, vs going the other way.