Factors associated with retinal vessel traits in the Canadian longitudinal study on aging

  • Mohan Rakesh
  • , Marie-H├®l├¿ne Roy-Gagnon
  • , David Maberley
  • , Ellen E. Freeman
  • , Alexis O'Neil
  • , Roshan A. Welikala
  • , Sarah Barman
  • , Christopher G. Owen
  • , Alicja R. Rudnicka

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This study aims to determine the factors cross-sectionally and longitudinally associated with retinal vessel diameter, total area, and tortuosity in the Canadian Longitudinal Study on Aging (CLSA). Current smoking was strongly associated with wider arteriolar and venular diameters and their widening over 3 years (P < 0.05). Current smoking was also associated with a larger arteriolar and venular area and a 3-year increase in venular area (P < 0.05). Obesity was positively associated with venular diameter, total venular area, 3-year change in total venular area, and venular tortuosity (P < 0.05). Diastolic blood pressure was negatively associated with both arteriolar and venular diameter, area, and tortuosity, both cross-sectionally and longitudinally (P < 0.05). Diabetes was associated with wider arteriolar diameters cross-sectionally, and type 1 diabetes was associated with 3-year widening of arteriolar diameters (P < 0.05).
    Original languageEnglish
    Article number13
    JournalInvestigative Ophthalmology and Visual Science
    Volume66
    Issue number3
    DOIs
    Publication statusPublished - 6 Mar 2025

    Bibliographical note

    Note: This research was made possible using the data/biospecimens collected by the Canadian Longitudinal Study on Aging (CLSA). Funding for the CLSA is provided by the Government of Canada through the Canadian Institutes of Health Research (CIHR) under grant reference LSA 94473 and the Canada Foundation for Innovation.

    Keywords

    • Pre-clinical and human biological sciences

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