Posttraumatic Optic Neuropathy due to Compression of the Optic Nerve by the Carotid Artery

Optic Neuropathy Secondary to Multifocal Nerve Compression by Dolichoecatatic Vasculature

Figure 1: A. (Top Left) Coronal T2 MRI: Arrowhead showing right cavernous carotid displacing optic chiasm superiorly. Arrow highlighting left ACA displacing the left portion of the optic chiasm inferiorly. Also note focal hyperintensity in the right chiasm. B. (Top Right) Coronal T2 MRI: Arrowhead showing displacement of optic chiasm superiorly by supraclinoid cavernous carotid. C. (Bottom Left...

Compression of the optic nerve by a fusiform aneurysm of the carotid artery.

Hyperintense Optic Nerve due to Diffusion Restriction: Diffusion-Weighted Imaging in Traumatic Optic Neuropathy.

BACKGROUND AND PURPOSE Abnormal signal intensity of the optic nerve due to diffusion restriction may be seen in traumatic optic neuropathy. In addition to evaluating optic nerve hyperintensity on diffusion-weighted imaging, we compared the group differences of ADC values between the injured and uninjured contralateral nerve and identified the relation between measured ADC values and admission v...

Bilateral anterior ischaemic optic neuropathy due to optic disc drusen.

PURPOSE To report a case of bilateral anterior ischaemic optic neuropathy due to buried optic disc drusen. METHODS Case report. RESULTS A 64-year-old man presented with swollen optic discs and features suggestive of anterior ischaemic optic neuropathy (AION) in the left and right eye on two separate occasions ten months apart. Detailed ocular examination at presentation and systemic investi...

Optic nerve compression by normal carotid artery in patients with normal tension glaucoma.

AIM To determine whether compression of the optic nerve by the intracranial carotid artery (ICA) can be a causative factor of normal tension glaucoma (NTG). METHODS The medical records of 103 eyes of 54 Japanese patients with NTG and 104 eyes of 52 age matched control patients were reviewed. The neuroradiological findings of magnetic resonance images (MRI) were evaluated to determine the rela...