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February 22, 1990The Journal of Comparative Neurology

Human photoreceptor topography

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Authors

CCChristine A. CurcioVanderbilt UniversityKSKenneth R. SloanUniversity of Alabama at BirminghamRKRobert E. KalinaUniversity of Washington

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Implication

Randomized trial measures photoreceptor density in human retinas, highlighting individual variability.

Key Points

  • The aim is to measure the spatial density of cones and rods in human retinas and analyze individual differences.
  • Measured density of cones and rods in eight whole-mounted human retinas from seven individuals aged 27-44 years.
  • Constructed maps of photoreceptor density and analyzed variability between individuals.
  • Assessed cone and rod distributions concerning eccentricity and retinal regions.
  • Average human retina contains 4.6 million cones with peak foveal density of 199,000 cones/mm2 (100,000-324,000 cones/mm2).
  • Average human retina has 92 million rods, with density highest along an elliptical ring in superior retina.
  • Individual variability in photoreceptor density is highest near the fovea and consistent for both cones and rods.

Cite This Study

Curcio et al. (1990) studied this question.

synapsesocial.com/papers/69ff89e764548b97a42d6c4ahttps://doi.org/10.1002/cne.902920402
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