Abstract

Communications are short papers. Appropriate material for this section includes reports of incidental research results, comments on papers previously published, and short descriptions of theoretical and experimental techniques. Communications are handled much the same as regular papers. Proofs are provided.

In a recent paper, Koretz et al. [J. Opt. Soc. Am. A 21, 346 (2004) ] conclude that the results of the “corrected Scheimpflug technique” to obtain the shape of the human lens differ significantly from their magnetic resonance imaging (MRI) data. We demonstrate that the conclusions are based on incorrect statistical methods. A straightforward statistical comparison shows that there is no significant difference between the corrected Scheimpflug results and the MRI data.

© 2005 Optical Society of America

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References

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  1. J. F. Koretz, S. A. Strenk, L. M. Strenk, J. L. Semmlow, “Scheimpflug and high-resolution magnetic resonance imaging of the anterior segment: a comparative study,” J. Opt. Soc. Am. A 21, 346–354 (2004).
    [CrossRef]
  2. J. F. Koretz, P. L. Kaufman, M. W. Neider, P. A. Goeckner, “Accommodation and presbyopia in the human eye, aging of the anterior segment,” Vision Res. 29, 1685–1692 (1989).
    [CrossRef]
  3. J. F. Koretz, P. L. Kaufman, M. W. Neider, P. A. Goeckner, “Accommodation and presbyopia in the human eye. I: evaluation of in vivo measurement techniques,” Appl. Opt. 28, 1097–1102 (1989).
    [CrossRef] [PubMed]
  4. C. A. Cook, J. F. Koretz, A. Pfahnl, J. Hyun, P. L. Kaufman, “Aging of the human crystalline lens and anterior segment,” Vision Res. 34, 2945–2954 (1994).
    [CrossRef] [PubMed]
  5. J. F. Koretz, C. A. Cook, P. L. Kaufman, “Aging of the human lens: changes in lens shape at zero-diopter accommodation,” J. Opt. Soc. Am. A 18, 265–272 (2001).
    [CrossRef]
  6. M. Dubbelman, G. L. van der Heijde, “The shape of the aging human lens: curvature, equivalent refractive index and the lens paradox,” Vision Res. 41, 1867–1877 (2001).
    [CrossRef] [PubMed]
  7. M. Dubbelman, G. L. van der Heijde, H. A. Weeber, “The thickness of the aging human lens obtained from corrected Scheimpflug images,” Optom. Vision Sci. 78, 411–416 (2001).
    [CrossRef]
  8. J. R. Taylor, An Introduction to Error Analysis (Oxford U. Press, Oxford, UK, 1982), pp. 147–150.
  9. D. W. Richards, S. R. Russell, D. R. Anderson, “Method for improved biometry of the anterior chamber with a Scheimpflug technique,” Invest. Ophthalmol. Visual Sci. 29, 1826–1835 (1988).
  10. T. Kampfer, A. Wegener, V. Dragomirescu, O. Hockwin,“Improved biometry of the anterior eye segment,” Ophthalmic Res. 21, 239–248 (1989).
    [CrossRef] [PubMed]
  11. P. Lapuerta, S. J. Schein, “A four-surface schematic eye of macaque monkey obtained by an optical method,” Vision Res. 35, 2245–2254 (1995).
    [CrossRef] [PubMed]
  12. M. Dubbelman, G. L. van der Heijde, H. A. Weeber, G. F. Vrensen, “Changes in the internal structure of the human crystalline lens with age and accommodation,” Vision Res. 43, 2363–2375 (2003).
    [CrossRef] [PubMed]
  13. M. Dubbelman, G. L. van der Heijde, H. A. Weeber, “Change in shape of the aging human crystalline lens with accommodation,” Vision Res. 45, 117–132 (2005).
    [CrossRef]

2005 (1)

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, “Change in shape of the aging human crystalline lens with accommodation,” Vision Res. 45, 117–132 (2005).
[CrossRef]

2004 (1)

2003 (1)

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, G. F. Vrensen, “Changes in the internal structure of the human crystalline lens with age and accommodation,” Vision Res. 43, 2363–2375 (2003).
[CrossRef] [PubMed]

2001 (3)

J. F. Koretz, C. A. Cook, P. L. Kaufman, “Aging of the human lens: changes in lens shape at zero-diopter accommodation,” J. Opt. Soc. Am. A 18, 265–272 (2001).
[CrossRef]

M. Dubbelman, G. L. van der Heijde, “The shape of the aging human lens: curvature, equivalent refractive index and the lens paradox,” Vision Res. 41, 1867–1877 (2001).
[CrossRef] [PubMed]

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, “The thickness of the aging human lens obtained from corrected Scheimpflug images,” Optom. Vision Sci. 78, 411–416 (2001).
[CrossRef]

1995 (1)

P. Lapuerta, S. J. Schein, “A four-surface schematic eye of macaque monkey obtained by an optical method,” Vision Res. 35, 2245–2254 (1995).
[CrossRef] [PubMed]

1994 (1)

C. A. Cook, J. F. Koretz, A. Pfahnl, J. Hyun, P. L. Kaufman, “Aging of the human crystalline lens and anterior segment,” Vision Res. 34, 2945–2954 (1994).
[CrossRef] [PubMed]

1989 (3)

J. F. Koretz, P. L. Kaufman, M. W. Neider, P. A. Goeckner, “Accommodation and presbyopia in the human eye, aging of the anterior segment,” Vision Res. 29, 1685–1692 (1989).
[CrossRef]

T. Kampfer, A. Wegener, V. Dragomirescu, O. Hockwin,“Improved biometry of the anterior eye segment,” Ophthalmic Res. 21, 239–248 (1989).
[CrossRef] [PubMed]

J. F. Koretz, P. L. Kaufman, M. W. Neider, P. A. Goeckner, “Accommodation and presbyopia in the human eye. I: evaluation of in vivo measurement techniques,” Appl. Opt. 28, 1097–1102 (1989).
[CrossRef] [PubMed]

1988 (1)

D. W. Richards, S. R. Russell, D. R. Anderson, “Method for improved biometry of the anterior chamber with a Scheimpflug technique,” Invest. Ophthalmol. Visual Sci. 29, 1826–1835 (1988).

Anderson, D. R.

D. W. Richards, S. R. Russell, D. R. Anderson, “Method for improved biometry of the anterior chamber with a Scheimpflug technique,” Invest. Ophthalmol. Visual Sci. 29, 1826–1835 (1988).

Cook, C. A.

J. F. Koretz, C. A. Cook, P. L. Kaufman, “Aging of the human lens: changes in lens shape at zero-diopter accommodation,” J. Opt. Soc. Am. A 18, 265–272 (2001).
[CrossRef]

C. A. Cook, J. F. Koretz, A. Pfahnl, J. Hyun, P. L. Kaufman, “Aging of the human crystalline lens and anterior segment,” Vision Res. 34, 2945–2954 (1994).
[CrossRef] [PubMed]

Dragomirescu, V.

T. Kampfer, A. Wegener, V. Dragomirescu, O. Hockwin,“Improved biometry of the anterior eye segment,” Ophthalmic Res. 21, 239–248 (1989).
[CrossRef] [PubMed]

Dubbelman, M.

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, “Change in shape of the aging human crystalline lens with accommodation,” Vision Res. 45, 117–132 (2005).
[CrossRef]

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, G. F. Vrensen, “Changes in the internal structure of the human crystalline lens with age and accommodation,” Vision Res. 43, 2363–2375 (2003).
[CrossRef] [PubMed]

M. Dubbelman, G. L. van der Heijde, “The shape of the aging human lens: curvature, equivalent refractive index and the lens paradox,” Vision Res. 41, 1867–1877 (2001).
[CrossRef] [PubMed]

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, “The thickness of the aging human lens obtained from corrected Scheimpflug images,” Optom. Vision Sci. 78, 411–416 (2001).
[CrossRef]

Goeckner, P. A.

J. F. Koretz, P. L. Kaufman, M. W. Neider, P. A. Goeckner, “Accommodation and presbyopia in the human eye, aging of the anterior segment,” Vision Res. 29, 1685–1692 (1989).
[CrossRef]

J. F. Koretz, P. L. Kaufman, M. W. Neider, P. A. Goeckner, “Accommodation and presbyopia in the human eye. I: evaluation of in vivo measurement techniques,” Appl. Opt. 28, 1097–1102 (1989).
[CrossRef] [PubMed]

Hockwin, O.

T. Kampfer, A. Wegener, V. Dragomirescu, O. Hockwin,“Improved biometry of the anterior eye segment,” Ophthalmic Res. 21, 239–248 (1989).
[CrossRef] [PubMed]

Hyun, J.

C. A. Cook, J. F. Koretz, A. Pfahnl, J. Hyun, P. L. Kaufman, “Aging of the human crystalline lens and anterior segment,” Vision Res. 34, 2945–2954 (1994).
[CrossRef] [PubMed]

Kampfer, T.

T. Kampfer, A. Wegener, V. Dragomirescu, O. Hockwin,“Improved biometry of the anterior eye segment,” Ophthalmic Res. 21, 239–248 (1989).
[CrossRef] [PubMed]

Kaufman, P. L.

J. F. Koretz, C. A. Cook, P. L. Kaufman, “Aging of the human lens: changes in lens shape at zero-diopter accommodation,” J. Opt. Soc. Am. A 18, 265–272 (2001).
[CrossRef]

C. A. Cook, J. F. Koretz, A. Pfahnl, J. Hyun, P. L. Kaufman, “Aging of the human crystalline lens and anterior segment,” Vision Res. 34, 2945–2954 (1994).
[CrossRef] [PubMed]

J. F. Koretz, P. L. Kaufman, M. W. Neider, P. A. Goeckner, “Accommodation and presbyopia in the human eye. I: evaluation of in vivo measurement techniques,” Appl. Opt. 28, 1097–1102 (1989).
[CrossRef] [PubMed]

J. F. Koretz, P. L. Kaufman, M. W. Neider, P. A. Goeckner, “Accommodation and presbyopia in the human eye, aging of the anterior segment,” Vision Res. 29, 1685–1692 (1989).
[CrossRef]

Koretz, J. F.

Lapuerta, P.

P. Lapuerta, S. J. Schein, “A four-surface schematic eye of macaque monkey obtained by an optical method,” Vision Res. 35, 2245–2254 (1995).
[CrossRef] [PubMed]

Neider, M. W.

J. F. Koretz, P. L. Kaufman, M. W. Neider, P. A. Goeckner, “Accommodation and presbyopia in the human eye. I: evaluation of in vivo measurement techniques,” Appl. Opt. 28, 1097–1102 (1989).
[CrossRef] [PubMed]

J. F. Koretz, P. L. Kaufman, M. W. Neider, P. A. Goeckner, “Accommodation and presbyopia in the human eye, aging of the anterior segment,” Vision Res. 29, 1685–1692 (1989).
[CrossRef]

Pfahnl, A.

C. A. Cook, J. F. Koretz, A. Pfahnl, J. Hyun, P. L. Kaufman, “Aging of the human crystalline lens and anterior segment,” Vision Res. 34, 2945–2954 (1994).
[CrossRef] [PubMed]

Richards, D. W.

D. W. Richards, S. R. Russell, D. R. Anderson, “Method for improved biometry of the anterior chamber with a Scheimpflug technique,” Invest. Ophthalmol. Visual Sci. 29, 1826–1835 (1988).

Russell, S. R.

D. W. Richards, S. R. Russell, D. R. Anderson, “Method for improved biometry of the anterior chamber with a Scheimpflug technique,” Invest. Ophthalmol. Visual Sci. 29, 1826–1835 (1988).

Schein, S. J.

P. Lapuerta, S. J. Schein, “A four-surface schematic eye of macaque monkey obtained by an optical method,” Vision Res. 35, 2245–2254 (1995).
[CrossRef] [PubMed]

Semmlow, J. L.

Strenk, L. M.

Strenk, S. A.

Taylor, J. R.

J. R. Taylor, An Introduction to Error Analysis (Oxford U. Press, Oxford, UK, 1982), pp. 147–150.

van der Heijde, G. L.

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, “Change in shape of the aging human crystalline lens with accommodation,” Vision Res. 45, 117–132 (2005).
[CrossRef]

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, G. F. Vrensen, “Changes in the internal structure of the human crystalline lens with age and accommodation,” Vision Res. 43, 2363–2375 (2003).
[CrossRef] [PubMed]

M. Dubbelman, G. L. van der Heijde, “The shape of the aging human lens: curvature, equivalent refractive index and the lens paradox,” Vision Res. 41, 1867–1877 (2001).
[CrossRef] [PubMed]

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, “The thickness of the aging human lens obtained from corrected Scheimpflug images,” Optom. Vision Sci. 78, 411–416 (2001).
[CrossRef]

Vrensen, G. F.

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, G. F. Vrensen, “Changes in the internal structure of the human crystalline lens with age and accommodation,” Vision Res. 43, 2363–2375 (2003).
[CrossRef] [PubMed]

Weeber, H. A.

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, “Change in shape of the aging human crystalline lens with accommodation,” Vision Res. 45, 117–132 (2005).
[CrossRef]

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, G. F. Vrensen, “Changes in the internal structure of the human crystalline lens with age and accommodation,” Vision Res. 43, 2363–2375 (2003).
[CrossRef] [PubMed]

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, “The thickness of the aging human lens obtained from corrected Scheimpflug images,” Optom. Vision Sci. 78, 411–416 (2001).
[CrossRef]

Wegener, A.

T. Kampfer, A. Wegener, V. Dragomirescu, O. Hockwin,“Improved biometry of the anterior eye segment,” Ophthalmic Res. 21, 239–248 (1989).
[CrossRef] [PubMed]

Appl. Opt. (1)

Invest. Ophthalmol. Visual Sci. (1)

D. W. Richards, S. R. Russell, D. R. Anderson, “Method for improved biometry of the anterior chamber with a Scheimpflug technique,” Invest. Ophthalmol. Visual Sci. 29, 1826–1835 (1988).

J. Opt. Soc. Am. A (2)

Ophthalmic Res. (1)

T. Kampfer, A. Wegener, V. Dragomirescu, O. Hockwin,“Improved biometry of the anterior eye segment,” Ophthalmic Res. 21, 239–248 (1989).
[CrossRef] [PubMed]

Optom. Vision Sci. (1)

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, “The thickness of the aging human lens obtained from corrected Scheimpflug images,” Optom. Vision Sci. 78, 411–416 (2001).
[CrossRef]

Vision Res. (6)

P. Lapuerta, S. J. Schein, “A four-surface schematic eye of macaque monkey obtained by an optical method,” Vision Res. 35, 2245–2254 (1995).
[CrossRef] [PubMed]

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, G. F. Vrensen, “Changes in the internal structure of the human crystalline lens with age and accommodation,” Vision Res. 43, 2363–2375 (2003).
[CrossRef] [PubMed]

M. Dubbelman, G. L. van der Heijde, H. A. Weeber, “Change in shape of the aging human crystalline lens with accommodation,” Vision Res. 45, 117–132 (2005).
[CrossRef]

J. F. Koretz, P. L. Kaufman, M. W. Neider, P. A. Goeckner, “Accommodation and presbyopia in the human eye, aging of the anterior segment,” Vision Res. 29, 1685–1692 (1989).
[CrossRef]

C. A. Cook, J. F. Koretz, A. Pfahnl, J. Hyun, P. L. Kaufman, “Aging of the human crystalline lens and anterior segment,” Vision Res. 34, 2945–2954 (1994).
[CrossRef] [PubMed]

M. Dubbelman, G. L. van der Heijde, “The shape of the aging human lens: curvature, equivalent refractive index and the lens paradox,” Vision Res. 41, 1867–1877 (2001).
[CrossRef] [PubMed]

Other (1)

J. R. Taylor, An Introduction to Error Analysis (Oxford U. Press, Oxford, UK, 1982), pp. 147–150.

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Table 1 Numerical Results of Three Parameters a

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