title: The length of Henle fibers in the human retina and a model of ganglion receptive field density in the visual field.
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.
authors.affiliation: School of Optometry and Vision Sciences, Cardiff University, CF10 3NB, UK.
authors.forename: Neville
authors.initials: N
authors.lastname: Drasdo
authors.forename: C Leigh
authors.initials: CL
authors.lastname: Millican
authors.forename: Charles R
authors.initials: CR
authors.lastname: Katholi
authors.forename: Christine A
authors.initials: CA
authors.lastname: Curcio
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000818:Animals; D002452:Cell Count; D005584:Fovea Centralis / Q000166:cytology; D006801:Humans; D008959:Models, Neurological; D012160:Retina / Q000166:cytology; D017949:Retinal Cone Photoreceptor Cells / Q000166:cytology*; D012165:Retinal Ganglion Cells / Q000166:cytology*; D014794:Visual Fields