Some extra information would help us diagnose some potential reasons!
Could you please let us know the following so we can help you further?:
- Age
- Gender
- Viv Substrate
- Hot/Cool Side Viv Temps
- Types of Lighting You Use and How Often You Use Them
- Food Offered and How Often Your Dragon Eats
A preemptive guess, but eyes not opening fully could either be the result of a bad
UVB bulb (coil UVB bulbs are notorious for eye problems in beardies) or the fact that he is not basking (which is likely due to temperature extremes not being adequate). It could potentially be brumation related, but it doesn't sound like it, and your dragon might not be old enough to brumate anyways.