Errors in neuroretinal rim measurement by Cirrus high-definition optical coherence tomography in myopic eyes

Young Hoon Hwang, Yong Yeon Kim, Sun Young Jin, Jung Hwa Na, Hwang Ki Kim, Yong Ho Sohn

Research output: Contribution to journalArticle

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Abstract

Background/aims To investigate the prevalence of, and factors associated with, errors in neuroretinal rim measurement by Cirrus high-definition (HD) spectraldomain optical coherence tomography (OCT) in myopic eyes. Method:s Neuroretinal rim thicknesses of 255 myopic eyes were measured by Cirrus HD-OCT. The prevalence of, and factors associated with, optic disc margin detection error and cup margin detection error were assessed by analysing 72 cross-sectional optic nerve head (ONH) images obtained at 5° intervals for each eye. Results: Among the 255 eyes, 45 (17.6%) had neuroretinal rim measurement errors; 29 (11.4%) had optic disc margin detection errors at the temporal (16 eyes), superior (11 eyes), and inferior (2 eyes) quadrants; 19 (7.5%) showed cup margin detection errors at the nasal (17 eyes) and temporal (2 eyes) quadrants; and 3 (1.2%) had both disc and cup margin detection errors. Errors in detection of temporal optic disc margin were associated with presence of parapapillary atrophy (PPA), higher myopia, and greater axial length (AL) ( p<0.001). Cup margin detection errors were associated with vitreous opacities attached to the ONH surface or acute cup slope angles (p<0.001). Conclusions: Errors in neuroretinal rim measurement by Cirrus HD-OCT were found in myopic eyes, especially in eyes with PPA, higher myopia, greater AL, vitreous opacity or acute cup slope angle. These findings should be considered when interpreting neuroretinal rim thickness measured by Cirrus HD-OCT.

Original languageEnglish
Pages (from-to)1386-1390
Number of pages5
JournalBritish Journal of Ophthalmology
Volume96
Issue number11
DOIs
Publication statusPublished - 2012 Nov 1

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Optical Coherence Tomography
Optic Disk
Myopia
Atrophy
Nose

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

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Errors in neuroretinal rim measurement by Cirrus high-definition optical coherence tomography in myopic eyes. / Hwang, Young Hoon; Kim, Yong Yeon; Jin, Sun Young; Na, Jung Hwa; Kim, Hwang Ki; Sohn, Yong Ho.

In: British Journal of Ophthalmology, Vol. 96, No. 11, 01.11.2012, p. 1386-1390.

Research output: Contribution to journalArticle

Hwang, Young Hoon ; Kim, Yong Yeon ; Jin, Sun Young ; Na, Jung Hwa ; Kim, Hwang Ki ; Sohn, Yong Ho. / Errors in neuroretinal rim measurement by Cirrus high-definition optical coherence tomography in myopic eyes. In: British Journal of Ophthalmology. 2012 ; Vol. 96, No. 11. pp. 1386-1390.
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abstract = "Background/aims To investigate the prevalence of, and factors associated with, errors in neuroretinal rim measurement by Cirrus high-definition (HD) spectraldomain optical coherence tomography (OCT) in myopic eyes. Method:s Neuroretinal rim thicknesses of 255 myopic eyes were measured by Cirrus HD-OCT. The prevalence of, and factors associated with, optic disc margin detection error and cup margin detection error were assessed by analysing 72 cross-sectional optic nerve head (ONH) images obtained at 5° intervals for each eye. Results: Among the 255 eyes, 45 (17.6{\%}) had neuroretinal rim measurement errors; 29 (11.4{\%}) had optic disc margin detection errors at the temporal (16 eyes), superior (11 eyes), and inferior (2 eyes) quadrants; 19 (7.5{\%}) showed cup margin detection errors at the nasal (17 eyes) and temporal (2 eyes) quadrants; and 3 (1.2{\%}) had both disc and cup margin detection errors. Errors in detection of temporal optic disc margin were associated with presence of parapapillary atrophy (PPA), higher myopia, and greater axial length (AL) ( p<0.001). Cup margin detection errors were associated with vitreous opacities attached to the ONH surface or acute cup slope angles (p<0.001). Conclusions: Errors in neuroretinal rim measurement by Cirrus HD-OCT were found in myopic eyes, especially in eyes with PPA, higher myopia, greater AL, vitreous opacity or acute cup slope angle. These findings should be considered when interpreting neuroretinal rim thickness measured by Cirrus HD-OCT.",
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