Astraea:

I feel like I read somewhere/was told a long time ago that Crow plucked his own eye out, crazy-style. Could be wrong though.

He did after an event that turned him back into Raven I believe. Though I could be misremembering.

AquaNeos:

If not me, then Casilu, or Jack.

How dare you impugn a gent as fine as I, sir. I won't even waste my question marks on you. You are beneath my punctuation!

(excepting that exclamation mark, christ i'm generous)

Crow has two eyes. He just keeps one tucked away for special events so it doesn't get scuffed up.