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Vision Res. 2007 Oct;47(22):2901-11. Epub 2007 Feb 22.

The length of Henle fibers in the human retina and a model of ganglion receptive field density in the visual field.

Author information

1
School of Optometry and Vision Sciences, Cardiff University, CF10 3NB, UK.

Abstract

An experimental study of lateral displacement of ganglion cells (GCs) from foveal cones in six human retinas is reported. At 406-675 microm in length, as measured in radially oriented cross-sections, Henle fibers are substantially longer than previously reported. However, a new theoretical model indicates that the discrepancies in these reports are mainly due to meridional differences. The model takes into account the effects of optical degradation and peripheral ON/OFF asymmetry and predicts a central GC:cone ratio of 2.24:1. It provides estimates of cumulative counts and GC receptive field density at 0 degrees -30 degrees along the principal meridians of the visual field.

PMID:
17320143
PMCID:
PMC2077907
DOI:
10.1016/j.visres.2007.01.007
[Indexed for MEDLINE]
Free PMC Article

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