You would have to close your eyes then.
I don't think there are any illusions, or lack of visual, just lack of visual understanding.
Some shots it's arguably better to be more cue ball oriented in terms of where you want to be at address.....and there is your offset.
Where are you in the standup?...if let's say a spot shot length straight in from behind the the line with the cue ball and object ball to the left corner pocket.
I know your chin is not directly over the cue ball, so you are a good few feet away and you are ignoring the cue ball in your lower peripheral and just focusing on the object ball.
I know there is a visual sequence in which you quickly look back and reference the cue ball again etc etc.....BUT in this process where are you in terms of the shot line?
If the shot line stopped just before where your chest is in the stand up and now ran up vertically, would you say that it basically splits you right in half as in, it would split your family jewels in half and run up your spine and sternum and eventually between your eyes and through the top of your head and basically split you in half like one of those movies with that chick in some big corporate medical laboratory and the world is gone to hell in a handbasket I forgot what the name of those movies were.
But I like that part where they get through this hallway but there is some sort of security laser the black dude nimley gets passed the first couple passes of that laser only to find the next pass is basically a screen mesh of laser and then his last words are "oh shit".... as he falls to the floor in cube size chunks.