VARIOUS FINDINGS OF RHINOGENOUS NEURITIS RETROBULBARIS

Abstract

Clinical diagnosis of rhinogenous optic neuritis is very difficult. To make the diagnosis sure, operative findings of posterior ethmoidal and sphenoidal sinus which situate near the nerve, and its postoperative progress are very important.The rhinogenous neuritis was classified into 3 types as follows:I. type: Syndrom of orbital apex (serious type).II. type: Optic neuritis with papilloedema (medium serious type).III. type: Optic neuritis without papilloedema (slight type).4 cases of I. type and 2 cases of II. type were reported. Among these 6 cases 5 cases of good results were obtained. Among these 6 cases in 3 cases removal of medial wall of optic canal by Niho-Sato's operation were performed and bony optic canal were histo-pathologically examined. By this histological observation serious pathologic changes were proved adjacent to the optic nerve and the etilogy as rhinogenous became very sure.The cases of the slight type are now still under investigation and although its diagnosis is still uncertain, it seems to be very probable to believe in the frequent presence of this type.For the treatment of the rhinogenous optic neuritis, complete removal of the pathologic mucous membrane thru transantral and extranasal route is very important and opening of optic canal by Niho-Sato's operation is effective.