Acute Visual Loss

Wray, Shirley H.

doi:10.1055/s-0036-1585452

Cited by 4 publications

(7 citation statements)

References 23 publications

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“…19 More recent reviews have not only considered carotid atherosclerotic occlusive disease as the cause of ocular ischaemia but also embolus, arteritis, vasospasm, glaucoma, and antiphospholipid syndrome, emphasising the need to include these entities in the differential diagnosis. 1,6,7…”

Section: Discussionmentioning

confidence: 99%

“…10 Despite the fact that ultrasound is widely used among stroke neurologists, only a few of them have collaborated on publications related to ocular ischaemia. 1,6,10 Given that acute painless monocular vision loss (APMVL) describes a group of syndromes or entities that have a vascular aetiology, the assessment of orbital vessels could help in the diagnosis. Based on our recent experience, the aim of this study was to analyse the results of vascular colour Doppler imaging of the orbital vessels and evaluate their added value in the diagnosis (cause/mechanism) of APMVL at our neurosonology laboratory.…”

Section: Usefulness Of Orbital Colour Doppler Ultrasound In Vascular-related Monocular Vision Lossmentioning

confidence: 99%

“…thrombocytosis, and vasospasm. 1,6,7 Establishing the correct diagnosis of monocular vision loss is therefore a challenge for clinicians.…”

Section: Usefulness Of Orbital Colour Doppler Ultrasound In Vascular-...mentioning

confidence: 99%

“…Monocular visual field defects can be due to several conditions, although acute and painless episodes are usually related to vascular causes. Vision loss of vascular origin has been classified by a number of authors as transient or persistent, 1 others have distinguished between ocular ischaemia and ischaemic optic neuropathy (ION), 2 while another author described both embolic and nonembolic causes. 3 Between 35% and 98% of cases involving embolic events are associated with some degree of carotid artery atherosclerosis, which can result in transient or irreversible vision loss.…”

Section: Introductionmentioning

confidence: 99%

“…The most frequent entities associated with these mechanisms are atherosclerosis, inflammatory diseases (giant cell arteritis), arterial dissections, atrial fibrillation, heart valve calcification, antiphospholipid syndrome, thrombocytosis, and vasospasm. 1,6,7 Establishing the correct diagnosis of monocular vision loss is therefore a challenge for clinicians.…”

Section: Introductionmentioning

confidence: 99%

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Usefulness of orbital colour Doppler ultrasound in vascular-related monocular vision loss

et al. 2021

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Acute, painless, monocular vision loss (APMVL) usually has a vascular aetiology. We conducted a prospective observational study from 2011 to 2018 to analyse the added value of colour Doppler imaging to assess orbital vessel blood flow in the diagnosis of APMVL. The study included 67 patients (39 [58.2%] men; mean age, 65.9 years [SD 13.7]) with APMVL evaluated at the Neurosonology Laboratory within the first 5 days of symptom onset, who were classified as having either transient or persistent monocular blindness. The blood flow in the ophthalmic and central retinal arteries was assessed using colour Doppler ultrasound with a linear 7.5-MHz transducer. Thirty-three (49.3%) patients presented transient monocular blindness, with reduced blood flow in either the ophthalmic or central retinal artery. The group with persistent vision loss included 24 cases of central retinal artery occlusion (CRAO) and 10 cases of ischaemic optic neuropathy (35.8% and 14.9%, respectively, of the total sample). These patients were older and had a higher prevalence of hypertension and mild carotid atherosclerosis. Orbital colour Doppler ultrasound (OCDUS) clarified the mechanism/cause of the ischaemia in 11 (16.4%) patients and showed abnormal flow in 46 (68.7%) patients, confirming the vascular origin in 19 (57.6%) of the transient monocular blindness cases. Lower peak systolic velocity was observed in patients with CRAO ( p < 0.001), and a velocity < 10 cm/s in the central retinal artery was independently associated with the diagnosis of CRAO. OCDUS can be helpful in confirming the vascular cause and identifying the aetiology of APMVL.

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