Heatwave Vise: Anti Fog ClearFogged up lenses are annoying, but let's be honest, they can be downright hazardous. Simply put, if you can't see what you're doing you could wind up in a jackpot in the blink of an eye, and we ain't talkin' about the Powerball. Introducing Heat Wave Anti Fog Tech. Each pair features a dual surface lens coating that prevents condensation from forming, ensuring your vision stays crystalline and your glasses stay on.