I started recently wearing sunglasses during my online classes as laptop screens started taking a toll on my poor eyesight (of course my physics teacher wanted it removed but that's beside the point).
I noticed on one occasion when I stretched my neck nearly 45 degrees towards my left, the screen went completely dark and I couldn't see a thing on my laptop. I thought that the battery must have died and so as I reached for my charger I saw the screen reappear. I also observed the same happening when I looked at the screen from the corner of my eye as I faced the left side of the laptop (from my peripheral vision). In the image the laptop would come towards the my right side, around 10-20 degrees.
More interesting I noticed this does not happen when I try the same from the left side (160-170 deg). My glasses left eye lens couldn't replicate what his right brethren could
My initial thoughts were this was some trick by Rayban company to help drivers blocking the sunlight coming to the right side as the left one couldn't do the same. (steering wheel is at right side over here, so It makes sense to block light coming from the right lens)
But whats the principal here?