...And, come to think of it, I actually briefly wore what must have been polarizer glasses in a very different context in the mid-1970s: I was being examined by a pediatric opthamologist prior to surgery for strabismus, and they were trying to see whether I had any stereoscopic depth perception at all. (I did, though I'm convinced mine is still somewhat less functional than most people's.)

I remember putting on some chunky glasses and looking at, of all things, a 3D photo of an enormously magnified fly. What can I say--it was a trippy era. I really should have started squeaking "HELLLP MEEEE".