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  2. Behr syndrome - Wikipedia

    en.wikipedia.org/wiki/Behr_syndrome

    Autopsy on one of the sister with Behr Syndrome revealed central atrophy of the optic nerves and total disarray of the normal laminar pattern of the lateral geniculate nucleus, dropout of neurons, and gliosis. There were numerous axonal spheroids in the neuropil. Similar spheroids with cell loss and gliosis were also observed in other thalamic ...

  3. Optic neuropathy - Wikipedia

    en.wikipedia.org/wiki/Optic_neuropathy

    Optic neuropathy is damage to the optic nerve from any cause. The optic nerve is a bundle of millions of fibers in the retina that sends visual signals to the brain. Damage and death of these nerve cells, or neurons, leads to characteristic features of optic neuropathy.

  4. Toxic and nutritional optic neuropathy - Wikipedia

    en.wikipedia.org/wiki/Toxic_and_nutritional...

    There are several causes of toxic optic neuropathy. [1] Among these are: ingestion of methanol (wood alcohol), ethylene glycol (automotive antifreeze), disulfiram (used to treat chronic alcoholism), halogenated hydroquinolones (amebicidal medications), ethambutol and isoniazid (tuberculosis treatment), and antibiotics such as linezolid and chloramphenicol as well as chloroquine and the related ...

  5. Mitochondrial optic neuropathies - Wikipedia

    en.wikipedia.org/wiki/Mitochondrial_optic...

    Metabolic disorders may also cause this version of disease. Systemic problems such as diabetes mellitus, kidney failure, and thyroid disease can cause optic neuropathy, which is likely through buildup of toxic substances within the body. In most cases, the cause of the toxic neuropathy impairs the tissue's vascular supply or metabolism. It ...

  6. Visual pathway lesions - Wikipedia

    en.wikipedia.org/wiki/Visual_pathway_lesions

    The optic tract syndrome is characterized by a contralateral, incongruous homonymous hemianopia, contralateral relative afferent pupillary defect (RAPD), and optic atrophy due to retrograde axonal degeneration. [16] Causes of optic tract lesions are also classified into intrinsic and extrinsic forms.

  7. Non-arteritic anterior ischemic optic neuropathy - Wikipedia

    en.wikipedia.org/wiki/Non-arteritic_anterior...

    Non-arteritic anterior ischemic optic neuropathy (NAION) is a medical condition characterized by loss of vision caused by damage to the optic nerve as a result of ischemia, or insufficient blood supply. The key symptom of NAION is optic disc swelling, which typically resolves within 2 months, but often leads to optic atrophy. The likelihood of ...

  8. Kjer's optic neuropathy - Wikipedia

    en.wikipedia.org/wiki/Kjer's_optic_neuropathy

    Autosomal dominant optic atrophy can present clinically as an isolated bilateral optic neuropathy (non-syndromic form) or rather as a complicated phenotype with extra-ocular signs (syndromic form). Dominant optic atrophy usually affects both eyes roughly symmetrically in a slowly progressive pattern of vision loss beginning in childhood and is ...

  9. Autoimmune optic neuropathy - Wikipedia

    en.wikipedia.org/wiki/Autoimmune_optic_neuropathy

    Autoimmune optic neuropathy (AON), sometimes called autoimmune optic neuritis, may be a forme fruste of systemic lupus erythematosus (SLE) associated optic neuropathy. AON is more than the presence of any optic neuritis in a patient with an autoimmune process, as it describes a relatively specific clinical syndrome.

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