[Stefan-A]

I'd say it's about to shed. The only thing to do, is to make sure the humidity is high enough, or that it has some humid place to hide. A small plastic box filled with moist paper towels, peat or moss and with a snake-size hole cut into the lid is probably the most common solution. It'll take about a week. First a few days with bluish cloudy eyes, a couple of days with clear eyes again and then it starts shedding.