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In vivo human crystalline lens topographySergio Ortiz, Pablo Pérez-Merino, Enrique Gambra, Alberto de Castro, and Susana Marcos »View Author Affiliations
Sergio Ortiz,1,*
Pablo Pérez-Merino,1
Enrique Gambra,1
Alberto de Castro,1
and Susana Marcos1
1Instituto de Óptica “Daza de Valdés”, Consejo Superior de Investigaciones Científicas, C/Serrano 121, 28006 Madrid, Spain *Corresponding author: sortiz@io.cfmac.csic.es |
Biomedical Optics Express, Vol. 3, Issue 10, pp. 2471-2488 (2012)
http://dx.doi.org/10.1364/BOE.3.002471
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Abstract
Custom high-resolution high-speed anterior segment spectral domain optical coherence
tomography (OCT) was used to characterize three-dimensionally (3-D) the human crystalline lens
in vivo. The system was provided with custom algorithms for denoising and
segmentation of the images, as well as for fan (scanning) and optical (refraction) distortion
correction, to provide fully quantitative images of the anterior and posterior crystalline lens
surfaces. The method was tested on an artificial eye with known surfaces geometry and on a
human lens in vitro, and demonstrated on three human lenses in
vivo. Not correcting for distortion overestimated the anterior lens radius by 25% and
the posterior lens radius by more than 65%. In vivo lens surfaces were fitted
by biconicoids and Zernike polynomials after distortion correction. The anterior lens radii of
curvature ranged from 10.27 to 14.14 mm, and the posterior lens radii of curvature ranged from
6.12 to 7.54 mm. Surface asphericities ranged from −0.04 to −1.96. The lens
surfaces were well fitted by quadrics (with variation smaller than 2%, for 5-mm pupils), with
low amounts of high order terms. Surface lens astigmatism was significant, with the anterior
lens typically showing horizontal astigmatism (
© 2012 OSA
OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(110.6880) Imaging systems : Three-dimensional image acquisition
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(330.7327) Vision, color, and visual optics : Visual optics, ophthalmic instrumentation
ToC Category:
Ophthalmology Applications
History
Original Manuscript: June 7, 2012
Revised Manuscript: July 26, 2012
Manuscript Accepted: August 24, 2012
Published: September 12, 2012
Citation
Sergio Ortiz, Pablo Pérez-Merino, Enrique Gambra, Alberto de Castro, and Susana Marcos, "In vivo human crystalline lens topography," Biomed. Opt. Express 3, 2471-2488 (2012)
http://www.opticsinfobase.org/boe/abstract.cfm?URI=boe-3-10-2471
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- E. Kim, K. Ehrmann, S. Uhlhorn, D. Borja, E. Arrieta-Quintero, and J. M. Parel, “Semiautomated analysis of optical coherence tomography crystalline lens images under simulated accommodation,” J. Biomed. Opt.16(5), 056003 (2011). [CrossRef] [PubMed]
- D. Borja, D. Siedlecki, A. de Castro, S. Uhlhorn, S. Ortiz, E. Arrieta, J. M. Parel, S. Marcos, and F. Manns, “Distortions of the posterior surface in optical coherence tomography images of the isolated crystalline lens: effect of the lens index gradient,” Biomed. Opt. Express1(5), 1331–1340 (2010). [CrossRef] [PubMed]
- S. R. Uhlhorn, D. Borja, F. Manns, and J. M. Parel, “Refractive index measurement of the isolated crystalline lens using optical coherence tomography,” Vision Res.48(27), 2732–2738 (2008). [CrossRef] [PubMed]
- A. M. Rosen, D. B. Denham, V. Fernandez, D. Borja, A. Ho, F. Manns, J. M. Parel, and R. C. Augusteyn, “In vitro dimensions and curvatures of human lenses,” Vision Res.46(6-7), 1002–1009 (2006). [CrossRef] [PubMed]
- E. Acosta, J. M. Bueno, C. Schwarz, and P. Artal, “Relationship between wave aberrations and histological features in ex vivo porcine crystalline lenses,” J. Biomed. Opt.15(5), 055001 (2010). [CrossRef] [PubMed]
- Y. Yang, K. Thompson, and S. A. Burns, “Pupil location under mesopic, photopic, and pharmacologically dilated conditions,” Invest. Ophthalmol. Vis. Sci.43(7), 2508–2512 (2002). [PubMed]
- A. Glasser and M. C. W. Campbell, “Biometric, optical and physical changes in the isolated human crystalline lens with age in relation to presbyopia,” Vision Res.39(11), 1991–2015 (1999). [CrossRef] [PubMed]
- A. Glasser and M. C. W. Campbell, “Presbyopia and the optical changes in the human crystalline lens with age,” Vision Res.38(2), 209–229 (1998). [CrossRef] [PubMed]
- P. Kiely, G. Smith, and L. Carney, “The mean shape of the human cornea,” Opt. Acta (Lond.)29(8), 1027–1040 (1982). [CrossRef]
- D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, “Optical coherence tomography,” Science254(5035), 1178–1181 (1991). [CrossRef] [PubMed]
- M. Shen, M. R. Wang, Y. Yuan, F. Chen, C. L. Karp, S. H. Yoo, and J. Wang, “SD-OCT with prolonged scan depth for imaging the anterior segment of the eye,” Ophthalmic Surg. Lasers Imaging41(6Suppl), S65–S69 (2010). [CrossRef] [PubMed]
- M. C. M. Dunne, L. N. Davies, and J. S. Wolffsohn, “Accuracy of cornea and lens biometry using anterior segment optical coherence tomography,” J. Biomed. Opt.12(6), 064023 (2007). [CrossRef] [PubMed]
- D. Siedlecki, A. de Castro, E. Gambra, S. Ortiz, D. Borja, S. Uhlhorn, F. Manns, S. Marcos, and J. M. Parel, “Distortion correction of OCT images of the crystalline lens: gradient index approach,” Optom. Vis. Sci.89(5), E709–E718 (2012). [CrossRef] [PubMed]
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Biomed. Opt. Express
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Invest. Ophthalmol. Vis. Sci.
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