Retrobulbar haemodynamics and carotid wall thickness in patients with non-arteritic anterior ischaemic optic neuropathy

Abstract

NAION may be associated with decreased retrobulbar flow velocities and increased carotid wall thickness.

Ophthalmic imaging of ocular circulation for detecting disease

“…122 In addition, increased intima-media thickness in the ipsilateral common and internal carotid arteries in unilateral NAION has been demonstrated compared to the contralateral arteries on the side of the unaffected eye. 123 After optic nerve sheath decompression in patients with NAION, blood fl ow increased in most retrobulbar vessels. 124 NAION can lead to devastating visual loss.…”

Effect of enhanced extracorporeal counterpulsation in patients with non-arteritic anterior ischaemic optic neuropathy

“…Furthermore, Werner et al, reported that the reperfusion of the affected retina in central retinal artery occlusion and branch retinal artery occlusion was accelerated after a short-term EECP treatment [9]. Since occlusive vasculopathy of the microcirculation may be one proposed mechanism for NAION, which may be related to the decreased blood flow velocity in the retrobulbar vessels [3,4], EECP may have a favorable effect on NAION through the augmentation of retrobulbar blood flow.…”

“…An acute incident of hypoperfusion is one of the primarily risk factors for NAION [1]. Color Doppler imaging (CDI) on NAION patients has shown markedly different retrobulbar haemodynamics with reduced circulation velocity in orbital vessels [3,4]. Approximately 15 % of patients developed NAION in the fellow eye within five years [2].…”

Analyses of the relation between internal carotid artery siphon and non-arteritic anterior ischaemic optic neuropathy

“…Another study suggested that patients with NAION showed markedly different retrobulbar haemodynamics with reduced circulation velocity in the ophthalmic artery measured by colour Doppler imaging (CDI) [9]. As we have known, previous studies discovered a link between the pathogenesis of NAION and the intima-media thickness (IMT) of carotid arteries and carotid diseases [9,10], but in our knowledge, there were few researches on the association of NAION and the diameter of ICAS so far. In fact, ICAS is a very special area from the anatomical point of view in patients with NAION [11], the narrowing of the vessel here might affect the lower reaches' hemodynamics directly.…”