Need fast advice- Eye Injury, cause unknown

[TopazMaster91]

Okay so, so far his eye doesn't seem any worse; if anything, it may be slightly better- it looks a little less bruised (less black around the upper eyelid) and possibly a little less swollen. He still keeps his eye completely shut, no blinking, but it doesn't look as bad as yesterday. He did a little tidbitting when I threw him some mealworms, so he's obviously feeling good enough to try to entice his girls, which is a good sign. It's still easy to catch him, and he goes limp quick once we have him in our hands. We're applying the Terramycin twice daily, on top of his eyelid.