Not many of us are aware of the skills and knowledge that the native people had. From the tip of South America to the Arctic, Native Americans contributed countless valuable things to the world in the form of inventions. People all over the world have enjoyed the fruits of many indigenous American inventions without realizing their origin.
Snow goggles were designed by the North American and Arctic cultures to reduce the amount of sunlight reflecting off the snow. This helped them prevent snow blindness when outdoors. While not much is known about these early twentieth-century goggles, we do know that they were made from wood, bone, antler, or seal ivory. The designs were made in a way to completely cover the eyes and let just enough light from horizontal slits to allow the wearer to see. These small slits also minimized the harm done to the eyes by UV rays. Sometimes even tiny holes were drilled into the top of the goggles to provide ventilation.
Clancy's comment: There ya go. Necessity is the mother of invention, eh?