is it an extra small chick? If not it should be able to stand up for itself with the others. The worst that can happen is it gets its eye pecked out/injured beyond repair, even then it has a chance at survival with one eye. As long as it seems to just be a birth defect pecking would be my...
I’m no expert, but if it’s made it to 2 weeks, it doesn’t seem to be a lethal deformity. Does the eye seem to have equal vision to the other one? It may just be an odd mutation. My one worry would be if the others peck at the eye.