I left out these two sentences. Thank you very much.
1) Every noise scares Macbeth. He fears that his guilty hands will pluck out his eyes. (What does this sentence mean?
2) He would like his eyes to be removed so that he won't have to see the blood and therefore acknowledge is guilt any more??).
3) He imagines that even all the water from Neptune's ocean could not (or will not) wash (away) the burden of guilt that weighed on his tormented mind (soul?).
1) He's afraid, because he was feeling bad about what he had done (guilty), and he feels like he will tear his eyes out. What don't you understand?
2) is - his
3) either
Sra