Computer-assisted retinal vessel measurement in an older population: correlation between right and left eyes.


Journal Article

This study assessed the correlation between computer-assisted retinal vessel measurements of right and left eyes, from subjects in a defined, community-based older population. Retinal photographs from participants in the Blue Mountains Eye Study were digitized. All retinal arterioles and venules located 0.5-1.0 disc diameters from the optic disc margin were identified and a computer program measured their diameters. Pearson correlation (R2) statistic was used to assess the correlation in a random subsample of 1546 images. Substantial correlation between right and left eye measurements was found for summary indices of retinal arterioles (R2 = 0.70) and venules (R2 = 0.77). Higher correlation was found for intragrader (R2 0.75-079) than for intergrader assessment (R2 0.67-0.72). Moderate correlation was found in arteriole-to-venule ratio assessed by the same (R2 = 0.57) or different (R2 = 0.52) graders. Measurements from one eye can thus adequately represent the retinal vessel diameters of a person.

Full Text

Duke Authors

Cited Authors

  • Leung, H; Wang, JJ; Rochtchina, E; Tan, AG; Wong, TY; Hubbard, LD; Klein, R; Mitchell, P

Published Date

  • August 2003

Published In

Volume / Issue

  • 31 / 4

Start / End Page

  • 326 - 330

PubMed ID

  • 12880458

Pubmed Central ID

  • 12880458

International Standard Serial Number (ISSN)

  • 1442-6404


  • eng

Conference Location

  • Australia