I can’t see well through those 3D glasses. Not headache they just don’t work right; I have a lot of trouble with binoculars as well, was profoundly nearsighted so maybe that’s a factor. It’s fine, except for the bits of action movies that seem to have been filmed for 3d and look strange in the 2d version.

I do have depth perception in real life just not through those glasses, though I haven’t tried in the last few years.