To block someone or something from your field of vision, meaning to not hear or see that thing until requested off.
John:Did you see Lenny today?
Clint: Nah, I used my optic nerve blocking to ignore that loser!
To block someone/something from your field of vision. There is a possibility that you can still hear them but it comes in the form of sounds that remind you of them.
SQUIP: It's called optic nerve blocking. I have been blocking Michael from your field of vision.