Has anyone noticed whether or not a ghost can, or cannot, be seen when in eyeballery mode?
Knowing for sure one way or the other would be helpful and ease doubt.
Scroll down to see screencaps of all the locations with ghosts. Please use these instead.
I would really recommend you don't try to manually search for the ghosts, even with eyeballery. It's very easy to miss them since they're faded and standing against dark backgrounds.