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Abstract #23812 Published in IGR 11-2
Retrobulbar haemodynamics and carotid wall thickness in patients with non-arteritic anterior ischaemic optic neuropathy
Sanjari MS; Falavarjani KG; Mehrabani M; Ghiasian L; Zamani BBritish Journal of Ophthalmology 2009; 93: 638-640
AIM: To compare retrobulbar haemodynamics and ipsilateral carotid wall thickness of patients with unilateral non-arteritic anterior ischaemic optic neuropathy (NAION) with their contralateral side. METHODS: Seventeen patients with unilateral NAION participated in this study. By means of Colour Doppler imaging, the blood-flow velocities of the ophthalmic artery were measured. Intima-media thickness (IMT) of common carotid and internal carotid arteries were measured using B-mode ultrasonography. Measurements of the affected side were compared with the non-involved side. RESULTS: Flow velocities in the ophthalmic arteries on the side of the eyes with NAION were significantly decreased compared with those on the side of the unaffected eyes (p<0.001). In addition, in all patients, both common and internal carotid artery IMT were significantly greater on the side of the NAION compared with the contralateral side (p<0.001). CONCLUSION: NAION may be associated with decreased retrobulbar flow velocities and increased carotid wall thickness.
Eye Research Center, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
Classification:
10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy
6.11 Bloodflow measurements (Part of: 6 Clinical examination methods)
