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The receptor mosaic of Aotes trivirgatus : Distribution of rods and cones
Author(s) -
Ogden Thomas E.
Publication year - 1975
Publication title -
journal of comparative neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.855
H-Index - 209
eISSN - 1096-9861
pISSN - 0021-9967
DOI - 10.1002/cne.901630205
Subject(s) - biology , retina , rod , cone (formal languages) , anatomy , retinal , distribution (mathematics) , neuroscience , pathology , botany , medicine , mathematical analysis , alternative medicine , mathematics , algorithm , computer science
The distribution and density of rods and cones have been determined in the temporal retina of the owl monkey Aotes trivirgatus . Rod density varied from 175,000/mm 2 in the far periphery to 387,000/mm 2 in the area centralis. Cone density was 4000/mm 2 in the periphery and 7300/mm 2 within the central retinal area. Variation of densities across the retina was continuous but the ratio of rods to cones remained about 50:1 at all locations. The cones are not randomly scattered, but are separated by distances of about 10 μ in central retina and 13 μ in peripheral retina.