An interesting idea earlier about wearing copper colored glasses for blood tracking. It has always been my preferred driving lens color because it accentuates the reds and greens. A friend of mine did jam a stick into his eye walking in the dark and he had a lot of issues with that eye for years afterward. Walking in the dark with a clear set of safety glasses would prevent that. Fogging and reflection would be my main concern hunting close range deer in cold weather. I'm kind of amused lately at the blue sun glass fad currently. Those polarized ones are supposed to be designed for the ocean fishing guys. There are some good You Tube videos on the Costa Sun Glass site for picking the right color lenses. I stayed with the glass copper non-mirrored ones.
