My baby chinchilla, 4 months old, always seems to keep one eye a little shut. When we first brought him home and gave him a dust bath and we noticed some irritation, little discharge. But for the past month we have made some changes and he has quit getting any discharge and his eye looks great. But he still always seems to keep it a little closed and like I said I don't know why because it isn't red or dischargy, he doesn't paw at it. So does anyone know why lol?