May 2008
Volume 49, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2008
Central Corneal Thickness Measurement With Fourier-Domain Optical Coherence Tomography versus Ultrasonic Pachymetry
Author Affiliations & Notes
  • A. Ishibazawa
    Department of Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • S. Igarashi
    Department of Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • S. Ishiko
    Department of Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • K. Hanada
    Department of Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • O. Muramatsu
    Department of Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • A. Yoshida
    Department of Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • Footnotes
    Commercial Relationships  A. Ishibazawa, None; S. Igarashi, None; S. Ishiko, None; K. Hanada, None; O. Muramatsu, None; A. Yoshida, None.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science May 2008, Vol.49, 2817. doi:https://doi.org/
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    • Get Citation

      A. Ishibazawa, S. Igarashi, S. Ishiko, K. Hanada, O. Muramatsu, A. Yoshida; Central Corneal Thickness Measurement With Fourier-Domain Optical Coherence Tomography versus Ultrasonic Pachymetry. Invest. Ophthalmol. Vis. Sci. 2008;49(13):2817. doi: https://doi.org/.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: : To compare the accuracy and repeatability of Fourier-domain optical coherence tomography (FD-OCT) with ultrasound pachymetry in the measurement of central corneal thickness (CCT).

Methods: : CCT was measured in 30 subjects (30 normal corneas) by the same examiner, using ultrasonic pachymeter and FD-OCT (RTVue-100, Optovue) with anterior segment adaptor.

Results: : Mean +/- SD CCT measured by FD-OCT was 533 +/- 37 microm. This was highly correlated (Pearson's coefficient = 0.971) with the mean thickness measured by ultrasound pachymetry (567 +/- 35 microm). The coefficients of variation were good and comparable at 8.0% for ultrasonic pachymetry and 3.4% for FD-OCT.

Conclusions: : Our data showed that FD-OCT instrument provided measurements that were slightly but systematically lower than the measurements provided by ultrasonic pachymetry, which is currently the clinical gold standard method.

Keywords: imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound) • anterior segment • imaging/image analysis: clinical 
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