I thought I just found an awesome deal online and ordered some scott alibi limited edition goggles which retail for well over $100 for only $5 on gear trade. However went they arrived they had a huge crack though the outside lens. It doesn't affect my viability at all but I was wondering if these goggles are still usable. Will it cause them to fog up like a mo-fo? Any other problems this could cause? Otherwise the goggles are in perfect condition.