Originally Posted by
revcp
I wear glasses and I've not used goggles of any sort, even at -25F, and even for long rides like the Arrowhead Ultra in northern Minnesota. I use a lightweight buff, pulled up over my mouth if necessary. It keeps me surprisingly warm. A bit of a beard helps. I find that anything heavier both keeps me too warm and also tends to fog up my glasses.
My hat's off to you. I'd last about 10 seconds in that kind of weather without a survival suit on.