title: Foveal sparing. New anatomical evidence for bilateral representation of the central retina.
abstract: The pattern of retinal ganglion cell projections to the dorsal lateral geniculate nuclei has been demonstrated with horseradish peroxidase neuronography. A 1 degree-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 degrees at the fovea, since mixing of horseradish peroxidase-labeled and unlabeled ganglion cells was found in a band approximately 0.5 degrees 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".
mesh_terms: D000818:Animals; D005584:Fovea Centralis / Q000166:cytology*; D005724:Ganglia / Q000166:cytology; D000882:Haplorhini; D006735:Horseradish Peroxidase; D008252:Macaca fascicularis; D008266:Macula Lutea / Q000166:cytology*
chemical_list: D006735:Horseradish Peroxidase