Do your glasses constantly fog up in winter? How you can prevent it. As of: January 31, 2024, 1:30 p.m By: Franziska Kaindl CommentsPressSplit People who wear glasses are often confronted with fogged up lenses in cold weather.

The fogging occurs due to the temperature difference. If you enter a heated room after first being outside in the cold, then the warm air inside hits cool glasses lenses. The air suddenly cools down and can no longer hold as much moisture - so it condenses on the glasses.