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Nutritional and Toxic Optic Neuropathies

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Optic Nerve Disorders
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Abstract

The symptoms and signs of nutritional and toxic optic neuropathies are similar in that they usually present simultaneously and bilaterally. Symptoms are progressive with bilateral symmetric visual loss without pain. Some patients may initially only observe dyschromatopsia, such that certain colors, such as red, are not as bright. Usually only one eye may be involved in the early stages before the other becomes symptomatic. If one eye is severely affected while the other eye has completely normal findings, however, then the diagnosis of nutritional or toxic optic neuropathy is questionable. A gradual progressive blurriness, then cloudiness, often forms at the point of fixation.1

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Chan, J.W. (2007). Nutritional and Toxic Optic Neuropathies. In: Optic Nerve Disorders. Springer, New York, NY. https://doi.org/10.1007/978-0-387-68979-1_6

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