August 1989
Volume 30, Issue 8
Free
Articles  |   August 1989
Changes in rod sensitivity through adulthood.
Author Affiliations
  • E Pulos
    Department of Ophthalmology, University of Wisconsin, Madison 53792.
Investigative Ophthalmology & Visual Science August 1989, Vol.30, 1738-1742. doi:
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      E Pulos; Changes in rod sensitivity through adulthood.. Invest. Ophthalmol. Vis. Sci. 1989;30(8):1738-1742.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Absolute thresholds of 23 subjects 19-61 years of age were determined for three wavelengths at six retinal eccentricities in the horizontal meridian (2.5 degrees-30 degrees). The raw data were corrected for prereceptoral light losses that may be age-dependent. Lens density was estimated for each subject by comparing scotopic spectral sensitivity with the absorption spectrum of rhodopsin. Macular pigment density was estimated by comparing macular sensitivity with peripheral sensitivity. Average dark-adapted pupil size at each age was taken from published values. After correction for these prereceptoral light losses, changes in rod sensitivity with age were not significant at any retinal locus tested.

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