Table of Contents Author Guidelines Submit a Manuscript
BioMed Research International
Volume 2014, Article ID 808646, 6 pages
http://dx.doi.org/10.1155/2014/808646
Research Article

Repeatability of Ocular Measurements with a Dual-Scheimpflug Analyzer in Healthy Eyes

1Department of Applied Physics, University of Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
2Aragon Health Sciences Institute, Avenida San Juan Bosco, 13, 50009 Zaragoza, Spain
3Department of Surgery, Gynecology and Obstetrics, University of Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
4Department of Physiology and Pharmacology, University of Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
5Department of Ophthalmology, Lozano Blesa University Hospital, Avenida San Juan Bosco, 15, 50009 Zaragoza, Spain

Received 4 February 2014; Accepted 28 March 2014; Published 24 April 2014

Academic Editor: Achim Langenbucher

Copyright © 2014 Carmen Lopez de la Fuente et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. C. McAlinden, “Corneal refractive surgery: past to present,” Clinical and Experimental Optometry, vol. 95, no. 4, pp. 386–398, 2012. View at Google Scholar
  2. C. McAlinden, J. E. Moore, V. E. McGilligan, and T. C. B. Moore, “Spherical aberration and higher order aberrations with Balafilcon A (PureVision) and Comfilcon A (Biofinity),” Graefe's Archive for Clinical and Experimental Ophthalmology, vol. 249, no. 4, pp. 607–612, 2011. View at Publisher · View at Google Scholar · View at Scopus
  3. C. McAlinden and J. E. Moore, “Comparison of higher order aberrations after LASIK and LASEK for myopia,” Journal of Refractive Surgery, vol. 26, no. 1, pp. 45–51, 2010. View at Publisher · View at Google Scholar · View at Scopus
  4. R. Salouti, M. H. Nowroozzadeh, M. Zamani, M. Ghoreyshi, and R. Salouti, “Comparison of anterior chamber depth measurements using Galilei, HR Pentacam, and Orbscan II,” Optometry, vol. 81, no. 1, pp. 35–39, 2010. View at Publisher · View at Google Scholar · View at Scopus
  5. G. Savini, P. Barboni, M. Carbonelli, and K. J. Hoffer, “Accuracy of a dual Scheimpflug analyzer and a corneal topography system for intraocular lens power calculation in unoperated eyes,” Journal of Cataract and Refractive Surgery, vol. 37, no. 1, pp. 72–76, 2011. View at Publisher · View at Google Scholar · View at Scopus
  6. X. Wang and Q. Wu, “Investigation of the human anterior segment in normal chinese subjects using a dual scheimpflug analyzer,” Ophthalmology, vol. 120, no. 4, pp. 703–708, 2013. View at Publisher · View at Google Scholar
  7. N. Menassa, C. Kaufmann, M. Goggin, O. M. Job, L. M. Bachmann, and M. A. Thiel, “Comparison and reproducibility of corneal thickness and curvature readings obtained by the Galilei and the Orbscan II analysis systems,” Journal of Cataract and Refractive Surgery, vol. 34, no. 10, pp. 1742–1747, 2008. View at Publisher · View at Google Scholar · View at Scopus
  8. A. Z. Crawford, D. V. Patel, and C. N. J. McGhee, “Comparison and repeatability of keratometric and corneal power measurements obtained by orbscan II, pentacam, and galilei corneal tomography systems,” The American Journal of Ophthalmology, vol. 156, no. 1, pp. 53–60, 2013. View at Publisher · View at Google Scholar
  9. J. Aramberri, L. Araiz, A. Garcia, I. Illarramendi, J. Olmos, I. Oyanarte et al., “Dual versus single scheimpflug camera for anterior segment analysis: precision and agreement,” Journal of Cataract & Refractive Surgery, vol. 38, no. 11, pp. 1934–1949, 2012. View at Google Scholar
  10. G. Savini, M. Carbonelli, P. Barboni, and K. J. Hoffer, “Repeatability of automatic measurements performed by a dual Scheimpflug analyzer in unoperated and post-refractive surgery eyes,” Journal of Cataract and Refractive Surgery, vol. 37, no. 2, pp. 302–309, 2011. View at Publisher · View at Google Scholar · View at Scopus
  11. L. Wang, M. Shirayama, and D. D. Koch, “Repeatability of corneal power and wavefront aberration measurements with a dual-Scheimpflug Placido corneal topographer,” Journal of Cataract and Refractive Surgery, vol. 36, no. 3, pp. 425–430, 2010. View at Publisher · View at Google Scholar · View at Scopus
  12. J. L. Menezzo and E. E. Gregori, Técnicas Exploratorias En Oftalmología, Espaxs, 2006.
  13. Y. Barkana, Y. Gerber, U. Elbaz et al., “Central corneal thickness measurement with the Pentacam Scheimpflug system, optical low-coherence reflectometry pachymeter, and ultrasound pachymetry,” Journal of Cataract and Refractive Surgery, vol. 31, no. 9, pp. 1729–1735, 2005. View at Publisher · View at Google Scholar · View at Scopus
  14. S. A. Klein and R. B. Mandell, “Shape and refractive powers in corneal topography,” Investigative Ophthalmology and Visual Science, vol. 36, no. 10, pp. 2096–2109, 1995. View at Google Scholar · View at Scopus
  15. Galilei G2 operator's manual. Ziemer group, Port, Switzerland, 2011.
  16. International Organization for Standardization, Accuracy (Trueness and Precision) of Measurement Methods and Results. Part 1. General Principles and Definitions, (ISO, 5725-1), ISO, Geneva, Switzerland, 1994.
  17. J. M. Bland and D. G. Altman, “Measurement error,” British Medical Journal, vol. 313, no. 7059, article 744, 1996. View at Google Scholar · View at Scopus
  18. C. McAlinden, J. Khadka, and K. Pesudovs, “Statistical methods for conducting agreement (comparison of clinical tests) and precision (repeatability or reproducibility) studies in optometry and ophthalmology,” Ophthalmic and Physiological Optics, vol. 31, no. 4, pp. 330–338, 2011. View at Publisher · View at Google Scholar · View at Scopus
  19. S. Fukuda, K. Kawana, Y. Yasuno, and T. Oshika, “Repeatability and reproducibility of anterior chamber volume measurements using 3-dimensional corneal and anterior segment optical coherence tomography,” Journal of Cataract and Refractive Surgery, vol. 37, no. 3, pp. 461–468, 2011. View at Publisher · View at Google Scholar · View at Scopus
  20. M. Shirayama, L. Wang, M. P. Weikert, and D. D. Koch, “Comparison of corneal powers obtained from 4 different devices,” The American Journal of Ophthalmology, vol. 148, no. 4, pp. 528.e1–535.e1, 2009. View at Publisher · View at Google Scholar · View at Scopus
  21. W. Chen, C. McAlinden, K. Pesudovs, Q. Wang, F. Lu, Y. Feng et al., “Scheimpflug-placido topographer and optical low-coherence reflectometry biometer: repeatability and agreement,” Journal of Cataract & Refractive Surgery, vol. 38, no. 9, pp. 1626–1632, 2012. View at Google Scholar
  22. C. McAlinden, J. Khadka, and K. Pesudovs, “A comprehensive evaluation of the precision (repeatability and reproducibility) of the Oculus Pentacam HR,” Investigative Ophthalmology & Visual Science, vol. 52, no. 10, pp. 7731–7737, 2011. View at Google Scholar · View at Scopus
  23. G. Savini, P. Barboni, M. Carbonelli, and K. J. Hoffer, “Repeatability of automatic measurements by a new Scheimpflug camera combined with Placido topography,” Journal of Cataract and Refractive Surgery, vol. 37, no. 10, pp. 1809–1816, 2011. View at Publisher · View at Google Scholar · View at Scopus