Do other places use something similar?

alot of cultures have some form of sunprotection. the Alaska Natives used snowgoggles as did many of the northern cultures of othe world. the different culture's snowgoggles look differently based on the function, culture, and time period. then some of the cultures that were farther couth like parts of china where an emporer used smoked glass to protect his eyes from the sun. then a man in Rome who used to use emerald peices to shield his eyes from the sun while he was watching gladiators.