A touch on the hand makes the eyes snap to where that hand should be even if the hand has actually moved somewhere else.
Spontaneous eye movements triggered by a touch on the skin ignore the actual physical location of your limbs in real space. The human brain maintains a rigid, hard-wired map of the body that assumes every limb is in a default position. Most people assume the brain calculates the exact coordinates of a touch by combining skin sensation with muscle position data. This data proves the brain skips that math and relies on a pre-set template instead. Your visual system is fundamentally disconnected from your physical reality for a split second after a stimulus. Our internal sense of self is built on a static architectural plan rather than a live video feed.