I’ve tried a lot of different anti-fogging coatings over the years but the one I like best is called Cat Crap. It’s a blue waxy substance that you spread on your glasses, let dry, and then wipe off.
I’ve been wearing prescription glasses for 40 years. That’s not going to change despite advances in medicine, laser surgery, and all that. But wearing glasses can be a real pain in the butt if you’re into more extreme forms of outdoor recreation because they have a tendency to fog up or get covered in water at all the wrong times. If you wear glasses you know exactly what I’m talking about.
Backpacking with Glasses
However, when I’m climbing up a mountain in winter, I often still experience fogging and have to switch to goggles. My solution is to bring two pairs of ski goggles just in case one pair freezes up. It’s not a perfect strategy, but it buys me a little extra time when I need it. One of my ski goggles uses a passive venting scheme and the other has one of those built-in fans in it for venting moisture build-up. So far this two-pair strategy is working, but I haven’t had a chance to push it very hard so far.
When I’m hiking or backpacking, rain fall is more of an issue than fogging. When it rains really hard and your lenses get wet, it’s like looking through a window that’s covered with rain.The best way to preserve your vision is to prevent water from coating your lenses in the first place. This can be done by wearing a billed cap or by using a rain shell that has a built-in bill that sticks out a ways in its hood. These really help keep my glasses dry even in torrential downpours.
How do you maintain your vision in adverse conditions in the backcountry if you wear glasses?
Disclosure: The author owns this product and purchased it using their own funds.
Written 2009. Updated 2015.