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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 22, Iss. 6 — Jun. 1, 2005
  • pp: 1219–1220

Reply to comment on "Scheimpflug and high-resolution magnetic resonance imaging of the anterior segment: a comparative study"

Jane F. Koretz, Susan A. Strenk, and Lawrence M. Strenk  »View Author Affiliations


JOSA A, Vol. 22, Issue 6, pp. 1219-1220 (2005)
http://dx.doi.org/10.1364/JOSAA.22.001219


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Abstract

We dispute the claim made by Dubbelman and colleagues [J. Opt. Soc. Am. A22, 1216 (2005); this issue] that "incorrect statistical methods" were used to compare the MRI and Scheimpflug data. We clearly stated that we "analyzed the covariance of regression lines" in the results section. We believe the analysis of covariance of regression lines, as shown by Snedecor and Cochran [Statistical Methods (Iowa State U. Press, Ames, Iowa, 1989)] is as "correct" as the "straightforward statistical comparison" of confidence intervals employed by Dubbelman and colleagues; however; our statistical method has the benefit of being more precise and stringent than a simple comparison of confidence intervals.

© 2005 Optical Society of America

OCIS Codes
(110.2960) Imaging systems : Image analysis
(170.0110) Medical optics and biotechnology : Imaging systems
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(330.4300) Vision, color, and visual optics : Vision system - noninvasive assessment
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices

Citation
Jane F. Koretz, Susan A. Strenk, and Lawrence M. Strenk, "Reply to comment on "Scheimpflug and high-resolution magnetic resonance imaging of the anterior segment: a comparative study"," J. Opt. Soc. Am. A 22, 1219-1220 (2005)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-22-6-1219


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References

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  2. M. Dubbelman, G. L. van der Heijde, and H. A. Weeber, "The thickness of the aging human lens obtained from corrected Scheimpflug images," Optom. Vision Sci. 78, 411-416 (2001).
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