Comment by koralatov

I have a cheap pair of polarised aviators I got from eBay that have the same effect as these glasses. I'm guessing when they were made, the lens material was oriented wrong during cutting -- vertical instead of horizontal, and thus cutting out screens. I like wearing them, though I don't entirely trust them as sunglasses. And when I get a call, I have to lift them to be able to see my phone's screen.