Snow blindness, also known as photokeratitis, is predominately caused by the sun's reflection off of snow. If one is caught out in the wild, ill prepared for snow, what could one find in a temperate forest to help prevent snow blindness?.

Two options I was wondering about are:

• Improvised No Glare from charcoal/ashes like what professional athletes use. However, I'd question it's ability to block reflection from snow and I'd be worried about getting it in my eyes.
• An improvised hat, but again I'm not sure that would help much with reflection off the snow.