Vestibulo-ocular reflex (VOR), illustration. This reflex, shown here as neural pathways in the brain from the balance organs in the ear (the vestibular system), controls eye muscles to move the eyes and compensate for movements of the head. This allows the eyes to stay focused on an object even when moving the head. Input from the right side (red) is used to control muscles on the left side of the eyes, and vice versa.