I've never thought to buy glasses for it specifically. Typically I just dim lights and set screen brightness and contrast so it doesn't bother me.
I have used light regular sunglasses a little in the past when I've had to be in bright environments (bright af lab area), I recall that working OK.
This is from someone who just has the light hypersensitivity (it's often called snow blindness where I'm from), in case that matters.