Work with some lenses, like the baked finish one. I have clear Oakley n Smith ios. Use Pledge Lemon (not other types!) n aply a little bit n spread wt finger, wipe wt Soft Micofiber .buff wt another. Repeat again if needed.its an old ,
motorcyclist trick to clean lense n helmet! cheers. if you got new lenses wt spray colored finish(I hate those ) it may also work too but makers don't recommend. I will test on older one I scrap n let you know one of these boring days....
Also, lower the goggle and expose forehead to sweat so you don't sweat in.
n hot wax your plank every session!