When he first became Eyeless Jack, EJ tried to get other eyes to replace the ones he lost, but they wouldn't last more than a day. The black tar discintergrated them

(I'm in an EJ mood. If I had wifi, I'd be patrolling his tumblr, but I don't, so instead I'm sat here writing headcannons. I've written thirty so far, and it's the second day of my vacation. God help me.)