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Biomedical Optics Express

Biomedical Optics Express

  • Editor: Joseph A. Izatt
  • Vol. 3, Iss. 9 — Sep. 1, 2012
  • pp: 2050–2065

Distributed scanning volumetric SDOCT for motion corrected corneal biometry

Ryan P. McNabb, Francesco LaRocca, Sina Farsiu, Anthony N. Kuo, and Joseph A. Izatt  »View Author Affiliations

Biomedical Optics Express, Vol. 3, Issue 9, pp. 2050-2065 (2012)

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We present a method, termed distributed scanning OCT (DSOCT), which reduces the effects of patient motion on corneal biometry utilizing current-generation clinically available spectral domain optical coherence tomography (SDOCT) systems. We first performed a pilot study of the power spectrum of normal patient axial eye motion based on repeated (M-mode) SDOCT. Using DSOCT to reduce the effects of patient motion, we conducted a preliminary patient study comparing the measured anterior and posterior corneal curvatures and the calculated corneal power to both corneal topography and Scheimpflug photography in normal subjects. The repeatability for the measured radius of curvature of both anterior and posterior surfaces as well as calculated corneal refractive power using DSOCT was comparable to those of both topography and Scheimpflug photography.

© 2012 OSA

OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(110.4153) Imaging systems : Motion estimation and optical flow

ToC Category:
Optical Coherence Tomography

Original Manuscript: May 21, 2012
Revised Manuscript: August 8, 2012
Manuscript Accepted: August 9, 2012
Published: August 10, 2012

Ryan P. McNabb, Francesco LaRocca, Sina Farsiu, Anthony N. Kuo, and Joseph A. Izatt, "Distributed scanning volumetric SDOCT for motion corrected corneal biometry," Biomed. Opt. Express 3, 2050-2065 (2012)

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