May 2007
Volume 48, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2007
Comparison of Central Corneal Thickness, Best Anterior and Posterior Cornea Sphere Measurement With Pentacam, Orbscan, and Ultrasound
S. C. Barbarino; A. J. Kanellopoulos
Author Affiliations & Notes
  • S. C. Barbarino
    Ophthalmology, New York University/Manhattan Eye, Ear and Throat Hospital, New York, New York
  • A. J. Kanellopoulos
    Ophthalmology, Manhattan Eye, Ear and Throat Hospital, New York University, NY, New York
    Ophthalmology, Laser Vision Institute, Athens, Greece
  • Footnotes
    Commercial Relationships S.C. Barbarino, None; A.J. Kanellopoulos, None.
  • Footnotes
    Support None.
Investigative Ophthalmology & Visual Science May 2007, Vol.48, 3935. doi:
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      S. C. Barbarino, A. J. Kanellopoulos; Comparison of Central Corneal Thickness, Best Anterior and Posterior Cornea Sphere Measurement With Pentacam, Orbscan, and Ultrasound. Invest. Ophthalmol. Vis. Sci. 2007;48(13):3935.

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Abstract

Purpose:: The purpose of this study was to compare central corneal thickness (CCT), best fit anterior and posterior sphere measurements obtained with the Pentacam (Oculus) with scanning slit topography (Orbscan; Bausch & Lomb), and with ultrasound pachymetry (Nidek).

Methods:: CCT in 50 consecutive healthy, un-operated practice patients (100 eyes) was measured twice with each modality.

Results:: The mean CCT values as determined with the different modalities (+/-standard deviation) were: 532+/-29 microm, 555+/-37 microm, 530+/-34 microm, respectively. The differences between modalities (+/-95% limits of agreement) were -2.8+/-21 microm between rotating Scheimpflug and ultrasound, 25+/-31.2 microm between scanning slit and ultrasound, and 23+/-27 microm between scanning slit and rotating Scheimpflug imaging.

Conclusions:: In the assessment of normal corneas, the Pentacam measured CCT values closer to ultrasound pachymetry and with less variability compared with Orbscan.

Keywords: cornea: clinical science • imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound) • refractive surgery 
© 2007, The Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Permission to republish any abstract or part of an abstract in any form must be obtained in writing from the ARVO Office prior to publication.
Copyright © 2024 Association for Research in Vision and Ophthalmology.
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