We aren't equipped to see perfectly in light or dark, we have a range. Everyday is sunny here and people wear sunglasses. I'm not disagreeing with you though -

We aren't equipped to see perfectly in light or dark, we have a range. Everyday is sunny here and people wear sunglasses. I'm not disagreeing with you though - I think the difference is that monitors are backlit and things in nature that create light you tend to not look directly at for 8 hours a day.