"The zone is eponymously attributed to Emil Redlich (1866-1930) and Heinrich Obersteiner (1847-1922), Austrian physicians."
"The transition zone is susceptible to mechanical irritation and is implicated in neurovascular compression syndromes such as trigeminal neuralgia (CN V), hemifacial spasm (CN VII), vestibular paroxysmia (CN VIII) and glossopharyngeal neuralgia (CN IX). The location of the transition zone relative to the root entry zone for a cranial nerve can be useful in understanding whether a contacting vessel is likely to cause neuralgia or not 1."