I've had a pair of A frame goggles for about 8-10 years (green frames with black iridium lenses..... I think). They've been good to me until last ski season when they fogged up almost immediately and I had to switch to my backup pair. When I inspect the lenses closely I can see a small area where the material between the two lenses has broken down (if it was a seal, the seal is now broken allowing air to flow in and out of volume between the main lens and inside lens). Should the material between the lenses create a seal? Is this fixable with the use of silaprene or epoxy (or should the space between lenses be a vacuum or be filled with something different than air)? Has anyone on here tried this? To replace the same lens is $95 canadian and the cheapest lens is $60 (plus 12% tax). If I do opt to replace the lenses (or the entire goggles), what lenses do you recommend? Thanks.