Maybe a random question… Is there some secret to people wearing eye protection late into the race?
I had some 100% sunglasses that I put clear lenses in. Pretty quickly in the mud they became more of a burden. I spent awhile wiping them with a finger, outside at first but then eventually I had mud inside and outside that I was wiping away. My lackluster MTBing skills made it apparent I was better off putting them away and being able to see my lines and where rocks and ruts were clearly.
I kept looking around at other racers later in the race seeing them wearing clear glasses still, wondering how in the world it was possible. I even attempted to get mine out again and really clean them during a gravel section but immediately in the mud they became more of a hinderance and I gave up on them. I was rubbing grit out of my eyelids most of the night 
If it was only a couple guys I wouldn’t think much of it but I felt like the majority were still wearing glasses up where I was… Finished 5:17.