Responses
My guess is Isaiah gave his eye, if you look at the panel where he is shown fully you'll find that his eyes are in different colors or it might just be heterochromia and I'm thinking too much. ╮(￣▽￣)╭
Also Adam's injured eye and Isaiah black eye are on the same side and to me Isaiah left eye look pretty dead.
are we just going to gloss over the fact about that lost of sight thingy? did eve manipulate adam's memory or smth