April 2009
Volume 50, Issue 13
ARVO Annual Meeting Abstract  |   April 2009
To Compare Central Corneal Thickness Measurements Obtained With Optical Coherence Tomography (oct), and Ultrasound Pachymetry
Author Affiliations & Notes
  • A. D. Pennella
    Ophthalmology, UNIFESP, Linhares, Brazil
  • P. C. C. Ferreira
    Ophthalmology, Oftalmos/UNIVALE, Itajai, Brazil
  • G. Lima
    Ophthalmology, Oftalmos/UNIVALE, Itajai, Brazil
  • A. F. Costa
    Ophthalmology, Oftalmos/UNIVALE, Itajai, Brazil
  • F. Ramalho
    Ophthalmology, Oftalmos/UNIVALE, Itajai, Brazil
  • Footnotes
    Commercial Relationships  A.D. Pennella, None; P.C.C. Ferreira, None; G. Lima, None; A.F. Costa, None; F. Ramalho, None.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science April 2009, Vol.50, 1749. doi:
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      A. D. Pennella, P. C. C. Ferreira, G. Lima, A. F. Costa, F. Ramalho; To Compare Central Corneal Thickness Measurements Obtained With Optical Coherence Tomography (oct), and Ultrasound Pachymetry. Invest. Ophthalmol. Vis. Sci. 2009;50(13):1749.

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

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Purpose: : To compare central corneal thickness measurements obtained with optical coherence tomography (OCT), and ultrasound pachymetry

Methods: : This retrospective study included 67 consecutive patients (134 eyes). Central corneal thickness measurements were obtained using ultrasound pachymetry (DGH) and Rtvue OCT (Fourier domain/ high resolution OCT). Data were analyzed using paired sample t test, Bland and Altman plot, and linear regression.

Results: : Average central corneal thickness was 551.35+/-43.82 microm for ultrasound pachymetry, 540.84+/-45.01 microm for Rtvue OCT. Compared to the ultrasound measurement, Rtvue OCT measurements significantly underestimated the corneal thickness by 12.81+/-16.34 microm (P<.01)

Conclusions: : Rtvue OCT underestimated central corneal thickness compared to ultrasound pachymetry

Keywords: cornea: basic science • anterior segment • comparative anatomy 

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