What is oculomotor nerve loss?

The oculomotor nerve also innervates the internal and external rectus muscles and superior oblique muscles

of the eye. When damaged, it will lead

to eye movement disorders, double vision, nystagmus and other symptoms.

3

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The parasympathetic fibers in the oculomotor nerve innervate the pupil sphincter. When damaged, it will lead to pupil dilation, light reflex weakened or disappeared.

4. Vision loss. Damage to the oculomotor

nerve will affect the blood supply of the optic nerve, leading to damage to the optic nerve, resulting in decreased vision, visual field defects and other symptoms.