Final answer:
Oculomotor palsy can cause various signs, but it does not cause lateral gaze palsy.
Step-by-step explanation:
Oculomotor palsy is a condition that affects the oculomotor nerve, a cranial nerve responsible for controlling eye movement. This nerve innervates several muscles that control movements of the eye, including the medial rectus muscle (which helps the eye look inward) and the superior rectus muscle (which helps the eye look upward).
An oculomotor palsy can cause various signs, such as drooping of the eyelid, double vision, and an eye that looks down and out. However, one sign that cannot be caused by oculomotor palsy is lateral gaze palsy. Lateral gaze palsy refers to the inability to move the eyes horizontally, such as looking to the left or right.
This condition is typically caused by damage to the abducens nerve or the nucleus in the brainstem that controls horizontal eye movements. Therefore, if a person is experiencing a deficit in lateral gaze, oculomotor palsy is unlikely to be the cause.