Abstract
Data for densities and sizes of human cones were analyzed as a function of retinal eccentricity. Density of cones followed a decreasing power of about -2/3 over much of the eccentricity range. This decrease, and the subsequent increase in cone density toward the ora serrata, were predictable on the basis of a hypothetical density-control mechanism to equate the integrated luminous flux at the photoreceptors per unit retinal area, together with the empirical rule that cone diameter increases with a power of about 1/3 with eccentricity beyond the foveola. The analysis implies that cones aggregate in inverse proportion to the light impinging on them, and provides an explanation for the pronounced increase to 100% cone density at the ora serrata.
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© 1997 Springer Science+Business Media Dordrecht
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Tyler, C.W. (1997). Analysis of Human Receptor Density. In: Lakshminarayanan, V. (eds) Basic and Clinical Applications of Vision Science. Documenta Ophthalmologica Proceedings Series, vol 60. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5698-1_7
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DOI: https://doi.org/10.1007/978-94-011-5698-1_7
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