Cited by 317Retinal Diseases and TreatmentsRetinal Development and DisordersRetinal Imaging and Analysis

Photoreceptor degeneration and dysfunction in aging and age-related maculopathy

Jackson, Gregory R, Owsley, Cynthia, Curcio, Christine A·2002·Ageing Research Reviews

Abstract

The relative rate of rod and cone degeneration is a fundamental characteristic of any disorder affecting photoreceptors, including aging and age-related maculopathy (ARM). The human macula consists of a small cone-dominated fovea surrounded by a rod-dominated parafovea. In aging and early ARM, rods degenerate before cones, a decline in scotopic (rod-mediated) sensitivity is more prominent than a decline in photopic (cone-mediated) sensitivity, and the time course of dark adaptation of rods slows dramatically. The topography of rod dysfunction and loss in early ARM matches the location of pathology in the retinal pigment epithelium (RPE)/Bruch's membrane complex visible in the ocular fundus. Rod dysfunction and loss in aging and ARM may be due to retinoid deficiency at the level of the photoreceptors cause by impaired retinoid translocation across the RPE/Bruch's membrane complex, a hypothesis deserving of further investigation.

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Crossref · 10.1016/s1568-1637(02)00007-7

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Authors
Jackson, G. R., Owsley, C., & Curcio, C. A.
Affiliations
University of Alabama (US)
Corresponding author
Curcio, Christine A
Venue
Ageing Research Reviews
Publisher
Elsevier BV
Published
2002-06
Volume
1
Issue
3
Pages
381-396
ISSN
1568-1637 (ISSN-L)
OpenAlex
W1970140546
Cited by
317
References
91
Citations by year
2026: 8 · 2025: 13 · 2024: 7 · 2023: 13 · 2022: 15 · 2021: 17 · 2020: 20 · 2019: 14 · 2018: 14 · 2017: 17 · 2016: 16 · 2015: 9 · 2014: 13 · 2013: 25 · 2012: 16
FWCI
2.64
Type
journal article
Language
en
Open access
closed
Locations
  • Ageing Research Reviews (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (R01 AG 04212, R01AG004212)
  • National Eye Institute (R01EY006109, EY06109)
Topics
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Retinal Imaging and Analysis
Keywords
photoreceptor degeneration, rod photoreceptors, cone photoreceptors, age-related maculopathy, retinal aging, scotopic sensitivity, dark adaptation, retinal pigment epithelium, Bruch's membrane, macula
MeSH terms
Aging, Animals, Dark Adaptation, Humans, Macular Degeneration, Photoreceptor Cells, Vertebrate

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