Posterior ischaemic optic neuropathy: clinical features, pathogenesis, and management
نویسندگان
چکیده
منابع مشابه
Traumatic optic neuropathy—Clinical features and management issues
Traumatic optic neuropathy (TON) is an uncommon cause of visual loss following blunt or penetrating head trauma, but the consequences can be devastating, especially in cases with bilateral optic nerve involvement. Although the majority of patients are young adult males, about 20% of cases occur during childhood. A diagnosis of TON is usually straightforward based on the clinical history and exa...
متن کاملTraumatic ischaemic optic neuropathy.
Persistent profound visual loss following contusion of the globe or ocular adnexae has been well documented, the visual loss being attributed to haemorrhage into, or contusion of, the optic nerve, or to interference with the blood supply of the eye. The patient described below presented after a contusion of the eye and orbit, with the clinical picture of ischaemic optic neuropathy presumably re...
متن کاملAnterior ischaemic optic neuropathy
In anterior ischaemic optic neuropathy (AION) there is a comparatively sudden loss of vision in the entire eye, or in one sector of the field of vision of the eye, initially associated with oedema of the optic disc, which results in optic atrophy within a month or two, leaving a permanent visual defect. A large number of such cases have been reported in the literature, but, although this clinic...
متن کاملIschaemic optic neuropathy complicating cardiopulmonary bypass.
Bilateral anterior ischaemic optic neuropathy occurred in two patients undergoing cardiopulmonary bypass grafting. The causes may have been vasoconstriction of the posterior ciliary arteries by increased circulating angiotensin and diminished ciliary blood flow in the setting of systemic hypotension and elevated intraocular pressure.
متن کاملIschaemic optic neuropathy: the Singapore scene.
The commonest cause of an optic neuropathy in Singapore is ischaemia, and ischaemic optic neuropathy (ION) is one of the commonest causes of permanent loss of vision in elderly patients, especially in those with diabetes mellitus, hypertension and hyperlipidaemia. ION in our practice is almost invariably of the anterior variety and non-arteritic in origin, i.e. NA-AION. Posterior ION comprises ...
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ژورنال
عنوان ژورنال: Eye
سال: 2004
ISSN: 0950-222X,1476-5454
DOI: 10.1038/sj.eye.6701562