Felt sense vs visual sense Meditation instructions generally reiterate focusing ones attention on the sensations of breath but attention can mean several things. It can mean placing attention on what you feel but what about what you see?  What I notice a lot is, what I can only describe as my "inner eye", wants to see or visualise something so it generally sees various images either from the past or fantasises about the future etc which is very distracting. Where am I meant to place this eye? I don't know how to just not see anything.   I can place my attention on the sensations of my abdomen rising and falling but that is a felt sense not a visual sense. I have not come across any instruction about this.   Do I place the visual sense on the abdomen? Or do I visualise an object or Buddha etc?
What you see, in this case, are visual thoughts- they're the same as verbal thoughts. They arise due to untraceable prior causes that are outside of your control, and they can't really be stopped. Mental and verbal thoughts are both "sankhara", conditioned formations. We are all VERY strongly conditioned in our lives to grasp on to these formations, to "believe" them, and turn them in to ideas and visions and further thoughts. 

When you focus on your breath (or any other meditation object), you're focusing on something real- something you "feel", like you said- but, unlike thoughts and visions, it's something that doesn't feed more grasping. 

Each time your attention goes to your object, you slowly loosen the grip that these conditioned formations have on your attention.

So there's no need to place the attention of the "inner eye" anywhere. Acknowledge and accept that these visual images arise, then put them aside. 

Later on, you'll start to see how visual and verbal thoughts are both the product of the same movements of the mind. These movements mean nothing in themselves- they're just disturbances, like swirls of milk in a stirred-up cup of coffee- but our storehouse of memories and perceptions fill those swirls with powerful symbolism and apparent meaning.