Same here
Different reason (astigmatism), same result. Almost no depth perception, and since my right and left images refuse to overlap, red/green glasses only give me a headache. Separate stereograms don't work for me, either.
Isn't it amazing, though, how the mind compensates? Subtle visual clues, like superposition and occultation, serve just as well (I think) to judge relative distances. And, when you're used to interpreting a world that looks 2D as 3D (because you can touch it), 2D representations like drawings and photographs are just as easy to internalize as 3D.