I wear corrective eyeglasses, and because of this, I frequently experience problems with fogging when I wear safety goggles. How can I prevent or reduce fogging?
The safety goggles I use are the standard-issue goggles supplied by the campus store, but I can use other goggles rated at least Z87+D3 ("+"=impact, "D3"=splash) if I want.
One method of reducing the fogging I have tried is wedging a folded paper towel under the top edge of the goggles. It works, but I don't feel comfortable with it because it compromises the splash protection of the goggles.
I have also tried placing desiccant packets (of the sort found in various packaging) in the goggles. This has helped somewhat but doesn't solve the problem completely.
One possible solution would be to get safety goggle with prescription corrective lenses built-in (making them Z87-2D3 instead of Z87D3), but I have not been able to find a supplier online for such eyewear.
What can I do to reduce or eliminate fogging?