That sucks. I'd expect a doctor to at least try to find out what's causing it and if it's serious or not. I wouldn't expect them to tell you to "just don't look in that direction anymore".
But then I don't know your doctors ofcourse.
Wishing you all the best and I hope your issue still gets resolved one way or another. And I hope it's nothing serious.
I think they may be forgetting how much of an effort they themselves have put into finding alternative applications, changing their workflow and learning how to use and modify linux to their likings.
I prefer VLC but to each their own. I'm glad we have a choice.