Correlation between optic nerve head parameters and retinal nerve fibre layer thickness measured by spectral-domain optical coherence tomography in myopic eyes

Young H. Hwang, Yong Y. Kim

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Background: To evaluate the correlation between optic nerve head parameters and retinal nerve fiber layer thickness measured by Cirrus HD spectral-domain optical coherence tomography (Cirrus HD-OCT; Carl Zeiss Meditec) in healthy myopic eyes. Design: Cross-sectional study. Participants: One hundred and sixty-one right eyes from 161 healthy young myopic subjects. Methods: Optic nerve head parameters and retinal nerve fiber layer thickness were measured with the Cirrus HD-OCT. The distance between optic disc margin and scan circle (disc margin-to-scan distance) was measured on the Cirrus HD-OCT en-face optic nerve head image with aid of National Institutes of Health ImageJ image-analysis software (developed by Wayne Rasbands, National Institutes of Health, Bethesda, MD). Main Outcome Measures: The correlations among optic nerve head parameters, retinal nerve fibre layer thickness and the disc margin-to-scan distance were evaluated with and without adjustment of the magnification effect. Results: Without correction of the magnification effect, the thicker average retinal nerve fiber layer was correlated with greater rim area and lower degree of myopia (P<0.001). When the magnification effect was corrected, thicker average retinal nerve fibre layer was associated with greater disc area and greater rim area in univariate and multivariate analyses (P≤0.028); however, degrees of myopia and the disc margin-to-scan distance were not significantly associated with average RNFL thickness (P≥0.104). Conclusions: Thicker average retinal nerve fibre layer thickness was associated with greater rim and disc areas. Disc margin-to-scan distance was not significantly correlated with average retinal nerve fibre layer thickness in healthy myopic eyes.

Original languageEnglish
Pages (from-to)713-720
Number of pages8
JournalClinical and Experimental Ophthalmology
Volume40
Issue number7
DOIs
Publication statusPublished - 2012 Sep

Keywords

  • Glaucoma
  • Myopia
  • Optic nerve head
  • Optical coherence tomography
  • Retinal nerve fibre layer

ASJC Scopus subject areas

  • Ophthalmology

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