Ischemic Optic Neuropathies  

Oleh:

Biousse, Valerie ; Newman, Nancy J.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: The New England Journal of Medicine (keterangan: ada di Proquest) vol. 372 no. 25 (Jun. 2015), page 2428-2436.

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Perpustakaan FK Nomor Panggil: N08.K Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Disorders of the optic nerve represent a relatively common cause of visual loss. The optic nerve is a white-matter tract that relays information from the retina to the brain areas of visual processing. Whenever there is damage to an optic nerve, from whatever cause, it is termed an “optic neuropathy.” Unlike inflammatory optic neuritis, which is the most common optic neuropathy in young patients, ischemic optic neuropathy (ION) is the result of vascular insufficiency, not of inflammation. ION refers to all ischemic causes of optic neuropathy. Although IONs are considered to be equivalent to a “stroke of the optic nerve,” they cannot be directly compared with cerebral infarctions, and their causes and mechanisms reflect the unique anatomy of the optic nerve and its blood supply . ION is the most common acute optic neuropathy in older patients, with an annual incidence estimated at 2.3 to 10.2 cases per 100,000 persons 50 years of age or older.

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