is what normal? the lighter color ring around the eye?
it looks dry.. do you have a water source? do you soak? what do you feed, what are the temps.. what kind of bulb are you using?
Yes they have water I feed them roman lettuce but I'm thinking about switching to whole carrots I use a heat/uv lamp it's 95 under the lamp and 63-64 in the room and I don't really soak because for the most part he goes in it him self
the diet may be 90% of your problem.
Go to the store and buy a good salad mix. Spring mix with dark greens mixed with other salad stuff.. NO iceberg or Romaine.. Carrots as a treat would be ok..
They also need to be soaked..