The vestibular system in intertwined with vision enough that we are grouping them together. It is complicated enough that we decided to start at the beginning.
Gaze
We learn to focus with one eye at around seven months, and at around 12 months we learn to converge the two eyes to aim at one spot. However, the majority of time our brains should not be focused, so at this point we have to learn what if feels like to not focus. One way is to just look at these blurry images and compare how it feels with focusing on something small. You first have to learn to not focus.
Head Turning
