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.
Also Known As:
Optic Neuropathy; Optic Nerve Disease; Cranial Nerve II Disorder; Neural-Optical Lesion; Disc Disorder, Optic; Disk Disorder, Optic; Disorder, Optic Disc; Foster Kennedy Syndrome; Lesion, Neural-Optical; Neural Optical Lesion; Neural-Optical Lesions; Neuropathy, Optic; Optic Disc Disorder; Optic Disk Disorder; Optic Neuropathies; Syndrome, Foster-Kennedy; Cranial Nerve II Diseases; Foster-Kennedy Syndrome; Optic Disc Disorders; Optic Disk Disorders; Second Cranial Nerve Diseases