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Abstract #10415 Published in IGR 6-1
MR images of optic nerve compression by the intracranial carotid artery; including the patients with normal tension glaucoma
Kurokawa H; Kin K; Shimizu K; Akai M; Ikeda K; Sawada S; Arichi M; Ogata N; Matsumura MJapanese Journal of Clinical Radiology 2003; 48: 1655-1662
Twenty-one eyes of 12 patients with MRI-defined optic nerve compression by the intracranial carotid artery were examined in order to investigate whether the visual field defects resulted from optic nerve compression or other causes. In four affected eyes of two patients, the authors could not distinguish whether the visual field defects were due to optic nerve compression or normal-tension glaucoma. These patients had evidence of glaucoma-like cupping of the optic disc and visual field defects. Nine affected eyes of seven patients were diagnosed as having compressive optic neuropathy due to unilateral optic nerve compression associated with visual field defects or non-glaucomatous visual field defects. Four of nine affected eyes were associated with optic disc cupping of various degrees. The authors suggest that the glaucoma-like visual field defects and optic disc cupping may result from a compressive lesion of the anterior visual pathway. This feature frequently caused confusion in the differential diagnosis between optic nerve compression by the carotid artery and normal-tension glaucoma. LA: Japanese
Classification:
9.2.4 Normal pressure glaucoma (Part of: 9 Clinical forms of glaucomas > 9.2 Primary open angle glaucomas)
