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Definition: Conditions which produce injury or dysfunction of the second cranial or optic nerve, which is generally considered a component of the central nervous system. Damage to optic nerve fibers may occur at or near their origin in the retina, at the optic disk, or in the nerve, optic chiasm, optic tract, or lateral geniculate nuclei. Clinical manifestations may include decreased visual acuity and contrast sensitivity, impaired color vision, and an afferent pupillary defect. |
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Synonyms: - Cranial Nerve II Diseases
- Cranial Nerve II Disorder
- Disk Disorder, Optic
- Disk Disorders, Optic
- Foster Kennedy Syndrome
- Foster-Kennedy Syndrome
- Lesion, Neural-Optical
- Lesions, Neural-Optical
- Neural Optical Lesion
- Neural-Optical Lesion
- Neural-Optical Lesions
- Neuropathies, Optic
- Neuropathy, Optic
- Optic Disk Disorder
- Optic Disk Disorders
- Optic Nerve Disease
- Optic Neuropathies
- Optic Neuropathy
- Second Cranial Nerve Diseases
- Syndrome, Foster-Kennedy
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