“…Involvement of other cranial nerves, in particular the abducens nerve, the glossopharyngeal nerve or the vagus nerve, is only rarely observed in RHS [6,18,29]. Clinical symptoms of abducens nerve paresis manifests as motility disturbances of the eye with double vision, while paresis of the glossopharyngeal nerve and the vagus nerve lead to swallowing and taste disturbances or to vasovagal reactions, e. g. cardiac arrhythmia [8,18,[30][31][32]. Involvement of the optic nerve is considered a rare manifestation of RHS, which can manifest clinically as impaired vision [33].…”