While SCUBA diving we were taught to spit in our goggles to make them fog free when deccending into colder water. I have done this under the Ice Cap and in tropic waters and it always works. A spray that works and is not toxic to your eyes has yet to be invented I guess.
I understand Urine will accomplish the same result - It's just harder to Pee in your goggles while in a Wet Suit and pounding waves. So I personally can't attest to that.
I don't have a box for reply with Quote or Report this post either.
I sent a query to AS but was advised
they don't control the Forum its a different tech group so maybe will hear
later.
At one time, a year ago I could delete
a thread I had started but no longer can do so or even make corrections after posting.