Why even have snow goggles?

snow goggles are actually extremely important when you are outside, usually the winter time is the most common time to use them. when there is a blizzard or on a sunny day just after is when people need to have something to protect them. the reason is that the sunlight reflects off all the snow and makes it seem like your always looking into the sun, this causes the light to burn your cornea. so as you use the snow goggles it leaves a small slit where the light can go through, this reduces the light your corneas are exposed to as well as it heightens your vision. some of the native groups used them on sunny days as well because it did heighten your vision so well. it is similar to if you pushed you index finger and thumb on both hands together to make a diamond and then try to look through that diamond.