Partial Oculomotor Nerve Palsy Symptoms, Causes and Recovery

Partial oculomotor nerve palsy, also called partial cranial nerve III palsy or CN III palsy, occurs when the third cranial nerve is not working properly. This nerve controls several important eye functions, including eyelid lifting, eye movement, and in some cases pupil constriction.

Because oculomotor nerve palsy can sometimes signal a serious neurological or vascular problem, this condition should not be treated as a simple eye irritation or routine nerve complaint. New double vision, a drooping eyelid, eye movement changes, or a suddenly enlarged pupil should be medically evaluated promptly.

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