A Case Report of Shingles Vaccine as a Cause of Third Nerve Palsy: A Novel Etiology.

Vaccines are biological preparations widely used to provide acquired immunity against various life-threatening organisms and prevent severe complications of different infections. Vaccines typically demonstrate a high level of safety with minimal adverse effects. Nevertheless, it is crucial to enhance awareness when a potential new side effect emerges, as exemplified in the case discussed ahead. Despite the rarity of independent third nerve palsy occurrences, its association with the zoster vaccine remains unprecedented.