Can't you hike back or take an easy stroll to those 2 locations?
You know you took them off and left then, not that they could have fallen off if hooked to a shirt or whatever?
Not the same, I love safety glasses that were hanging on my shirt. Stopped to snack and glasses were fogging. Not long later I realied they were missing, but I couldn't find them laying around and were definitely not at the spot I took them off at.