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September 1980

Band Atrophy of the Optic NerveThe Histology of Temporal Hemianopsia

Arch Ophthalmol. 1980;98(9):1637-1638. doi:10.1001/archopht.1980.01020040489020

• Cross sections of the orbital portion of the optic nerve, the decussating fibers of which underwent atrophy, have a distinctive histologic pattern. Distally, from the eyeball to the midportion of the optic nerve, this pattern of atrophy consists of a broad-based nasal and a narrow-based temporal sector that form a horizontal band. Proximally, near the optic canal, the pattern changes. The atrophic bundles occupy the nasal and central portions of the optic nerve only.