I doubt that the eye is actually peeling but a lot of my animals will get 'wrinkles' on the eye scale this time of year. It's generally a sign of being dehydrated. I personally find keeping humidity levels up at this time of year to be difficult. One thing you could try is a humid hide box. Get a plastic shoe box or small sweater box, cut an access hole in the side and stuff it with damp (not dripping wet) sphagnum moss. Make sure the sphagnum moss stays slightly damp but not wet. Give it a try, see what happens...