In Reply To:
The reason that your goggles fog, IIRC, is because there are small particles of stuff (calcium and other stuff left when the water evaporated after your last swim) on the inside of the lens. These small particles give the water vapor a location upon which to condense, and (as they say in Chicago) Boom! ya got fog. So if you remove these particles, you prevent the fog.
Could this be why my Speedo (prescription) goggles didn't fog for the first year I had them, but they started fogging when I pulled them out after they were in the closet for a few years? I'll have to try washing them.
And, a more general question: Other than Cat crap (which people seem to like) and Speedo defogger (which some people dislike), are there any other brands of defogger on which anyone has an opinion?
Edited to add: I know the previous posts in this thread are rather old. I just didn't want to start a new thread if the topic had already been discussed.
"Real winners aren't content with yesterday's victories"