Partial Third Nerve Palsy Definition


Partial Third Nerve Palsy: Diseases of the oculomotor nerve or nucleus that result in weakness or paralysis of the superior rectus, inferior rectus, medial rectus, inferior oblique, or levator palpebrae muscles, or impaired parasympathetic innervation to the pupil. With a complete oculomotor palsy, the eyelid will be paralyzed, the eye will be in an abducted and inferior position, and the pupil will be markedly dilated. Commonly associated conditions include neoplasms, CRANIOCEREBRAL TRAUMA, ischemia (especially in association with DIABETES MELLITUS), and aneurysmal compression. (From Adams et al., Principles of Neurology, 6th ed, p270)

Synonym: cranial nerve iii diseases, total third-nerve palsy, third-nerve paralysis, third-nerve palsy, third cranial nerve diseases, oculomotor neuropathy, oculomotor nerve paralysis, oculomotor nerve palsy, oculomotor nerve disorder, oculomotor nerve disease.