Night driving glasses

[sexobon]

Originally Posted by Clodfobble

... then I'd cock my head 45 degrees to the side and suddenly everything in front of me would get much lighter and blind me, ...

I'm guessing the lenses were linearly polarized. I wear only sunglasses with circular polarization with which that doesn't happen. The illumination level through the lenses remains constant with changing viewing angle. They're also photochromic (lighten and darken automatically).