The Oculomotor Nerve (Cranial Nerve III)

The somatic motor component of CN III plays a major role in controlling the muscles responsible for the precise movement of the eyes for visual tracking or fixation on an object[1].
The visceral motor component is involved in the pupillary light and accommodation reflexes[1]. This is related to parasympathetic innervation[1].

References:

  1. https://medicine.yale.edu/cranialnerves/nerves/oculomotornerve.aspx Opens in new window