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August 1977

Foveal Sparing: New Anatomical Evidence for Bilateral Representation of the Central Retina

Author Affiliations

From the Department of Ophthalmology, Seattle Veterans Administration Hospital, and the Regional Primate Research Center, University of Washington, Seattle.

Arch Ophthalmol. 1977;95(8):1445-1447. doi:10.1001/archopht.1977.04450080155021

• The pattern of retinal ganglion cell projections to the dorsal lateral geniculate nuclei has been demonstrated with horseradish peroxidase neuronography. A 1°-wide strip centered on the vertical meridian has been found in which ipsilaterally and contralaterally projecting ganglion cells intermingle. This strip expands to a width of 3° at the fovea, since mixing of horseradish peroxidase-labeled and unlabeled ganglion cells was found in a band approximately 0.5° wide along both the nasal and temporal rims of the foveola. These labeled ganglion cells rimming the foveal pit in Its entirety represent a possible anatomical basis for "foveal sparing."

(Arch Ophthalmol 95:1445-1447, 1977)

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