"since eyes have evolved to also look at the sky" On the other hand the Inuit had to invent snow goggles to prevent blindness caused by the bright sun reflecte

"since eyes have evolved to also look at the sky" On the other hand the Inuit had to invent snow goggles to prevent blindness caused by the bright sun reflected off the white snow-covered terrain. Like, actual eye damage blindness. That's been attributed to UV but perhaps blue wavelengths play a role as well.