Lost a pair of Vuarnet sunglasses up on Metro 2 MTB trail, Ticknock, Threerock

Happened a few months back, but never knew about this website. Sunglasses were in case, another cyclist had seen them on the trail but didn't pick up. When I re-traced route they were gone. Expensive sunglasses that I've had quite a while, but I only started wearing them I can describe every detail to anyone that may have found them