amaurosis fugax

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amaurosis

[am″aw-ro´sis]

loss of sight without apparent lesion of the eye, as from disease of the optic nerve, spine, or brain.

amaurosis conge´nita (amaurosis congenita of Leber) (congenital amaurosis) hereditary blindness occurring at or shortly after birth, associated with an atypical form of diffuse pigmentation and commonly with optic atrophy and attenuation of the retinal vessels.

amaurosis fu´gax sudden temporary or fleeting blindness.

Leber's congenital amaurosis amaurosis congenita.

am·au·ro·sis fu·'gax

a transient blindness that may result from a transient ischemia resulting from carotid artery insufficiency or retinal artery embolus, or to centrifugal force (visual blackout in flight).

Farlex Partner Medical Dictionary © Farlex 2012

amaurosis fugax

Transient retinal ischemia, see there.

am·au·ro·sis fu·gax

(am'aw-rō'sis fū'gaks)

Transient blindness that may result from carotid artery insufficiency, retinal artery embolus, or centrifugal force (visual blackout in flight).

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

amaurosis fugax

Transient loss of vision, usually for a few seconds or minutes caused by interference to the blood supply to parts of the brain or eye by tiny EMBOLI or by spasm of the arteries supplying the eye. Repeated attacks can damage the RETINA and the condition is a warning of the grave danger of STROKE. Amaurosis fugax is a form of TRANSIENT ISCHAEMIC ATTACK.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

amaurosis fugax

Transient unilateral loss of vision. The visual loss varies from partial to total blindness and rarely lasts longer than 10 minutes. It is usually caused by a temporary occlusion in the internal carotid artery, which produces an insufficient blood flow to the ophthalmic artery and may lead to closure of the central retinal artery. Syn. blackout. See fluorescein angiography; temporal arteritis; blackout; bruit; Hollenhorst's plaques; retinal arterial occlusion.

References in periodicals archive ?

The symptom of amaurosis fugax without positive abnormalities could be interpreted as a complication of anemia or postural hypotension.

Clinical Analysis of 42 Cases of Ocular Ischemic Syndrome

Common indications for requesting this test include: (a) suspected transient ischemic attack (TIA), Co) reversible ischemic neurologic deficit (RIND), (c) CVA, (d) asymptomatic carotid bruit, or (e) amaurosis fugax.

The Efficacy of Carotid Endarterectomy: A Vascular Surgery Perspective Reducing Hospital Stay

History of stroke: includes stroke either by history or diagnosis by another medical practitioner, TIA or amaurosis fugax.

Variability in scoring the Hachinski Ischaemic Score

The manifestations of GCA include headache in 90% of cases, polymyalgia rheumatica (34%), jaw claudication (50%), amaurosis fugax, and blurred vision (40%).

Tongue Necrosis Secondary to Giant Cell Arteritis: A Case Report and Literature Review

Chen, "Correlation analysis on retrobulbar vascular hemodynamic characteristics and carotid artery color Doppler ultrasonographic features of amaurosis fugax," Zhonghua Yan Ke Za Zhi Chinese Journal of Ophthalmology, vol.

Ocular Image and Haemodynamic Features Associated with Different Gradings of Ipsilateral Internal Carotid Artery Stenosis

However, in the setting of evolving vision loss or amaurosis fugax, intravenous methylprednisolone, 500 mg to 1 g daily for 3 days followed by oral prednisone, should be used.

Vision loss is preventable in giant cell arteritis

Valvular vegetations can release emboli and lead to episodes of amaurosis fugax or retinal artery occlusion (2).

An infective endocarditis case presenting with sudden unilateral loss of vision--the first and single symptom/Ilk ve tek semptomu ani tek tarafli gorme kaybi olan bir infektif endokardit vakasi

The reasons for examination were varied: 42% had symptoms of transient ischemic attacks, 36% had symptoms of stroke, and 22% had symptoms of amaurosis fugax. The authors did not describe how these patients were referred.

Duplex ultrasound and magnetic resonance angiography are sensitive for severe carotid stenosis. (Patient-Oriented Evidence that Matters)

Patients experiencing a TIA of the anterior circulation may describe transient monocular blindness (amaurosis fugax), weakness or numbness of the contralateral limb, changes in cognitive or behavioral patterns, and/or language deficits.

Managing patients with carotid stenosis

For amaurosis fugax, the risk is 17% at 2 years versus 43% for transient hemispheric attacks.[12] There is a linear increase in stroke rate as the degree of angiographic stenosis increases.

Controversies in the management of carotid stenosis

Hemispheric neurological symptoms, amaurosis fugax, and Hollenhorst plaques detected in ophthalmologic examination are findings that require imaging in the diagnosis of CAS.

Intraocular pressure and retinal nerve fibre layer thickness changes after carotid artery stenting

The patient usually presents with sudden painless loss of vision, with prior history of amaurosis fugax ranging from few minutes to few hours may be present.