• 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)
Bunt AH, Minckler DS. Foveal SparingNew Anatomical Evidence for Bilateral Representation of the Central Retina. Arch Ophthalmol. 1977;95(8):1445-1447. doi:10.1001/archopht.1977.04450080155021