“…1). In 1979, Parkinson (21) (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19). Regarding the causes, intracavernous ICA aneurysm (1)(2)(3)(4)(5)(6)(7)(8), occlusion of ICA (9), cavernous sinus thrombosis (10), trauma (11,12), Wegener's granulomatosis (13), herpes zoster ophthalmicus arteritis (14), sphenoidal cyst (1), epipharynx carcinoma (1), chordoma in the middle and posterior cranial fossa (1), meningioma in the middle cranial fossa (1), pituitary adenoma (6), carcinoma in the maxillary sinus (15), and metastatic neoplasm within the cavernous sinus (1,5,(16)(17)(18)(19) (17), and 3 undetermined origin (18,…”