Seen in the image above, Wilson appears to have lost his eye, or is at least bandaging it for the time being. I've made a few theories based on this situation.
1: MacTusk Blowdart
<--- This is the one that I believe was the most likely cause. I don't know. I just see it happening.
2: Bee Sting ? ? ?? ?
Sorta similar to the blowdarts, the stinger of a bee could be very lethal. This one I don't think is too be likely unless Wilson doofed up gathering honey or something.
3: Potentially faking it.
I'm not kidding, those whom have the skin itself can rapidly put away and re-equip a tool at a fast pace to reveal that Wilson still has his second eye, no scar, no nothing. Faking the injury for attention, are you?
4: It's just a costume.
Maybe?... uh?
Conclusion:
It's very likely that we will never know how Wilson lost his eye in his Survivor Skin, but I would love to hear your ideas and theories! But then again maybe I'm just overthinking things again.
Until next time!