OSA's Digital Library

Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 7 — Aug. 1, 2013

Inspection of freeform intraocular lens topography by phase measuring deflectometric methods

Alexis Speck, Benedikt Zelzer, Marc Kannengießer, Achim Langenbucher, and Timo Eppig  »View Author Affiliations


Applied Optics, Vol. 52, Issue 18, pp. 4279-4286 (2013)
http://dx.doi.org/10.1364/AO.52.004279


View Full Text Article

Enhanced HTML    Acrobat PDF (867 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Manufacturing spherical, aspheric, and freeform surfaces requires testing throughout the development and production process. State-of-the-art topography measurement is limited in applicability for intraocular lenses (IOLs), and there is no dedicated commercial surface measurement system available for freeform IOLs. The purpose of this work was to validate a deflectometric setup for surface measurement, detection of defects, and shape fidelity analysis for the development and production of IOLs. The setup is based on a phase measuring deflectometer with a field-of-view of 80mm×80mm and a mean repetition accuracy of 1.6·103D. The technique is suitable for detection of global and local surface errors, extracted from geometry and topography analysis. For validation according to DIN ISO 5725:2002, spherical IOLs with radii of curvature of 10 and 20 mm, a commercial aspheric IOL, and single-sided freeform IOL samples were used.

© 2013 Optical Society of America

OCIS Codes
(040.1490) Detectors : Cameras
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(230.0230) Optical devices : Optical devices
(240.0240) Optics at surfaces : Optics at surfaces
(350.0350) Other areas of optics : Other areas of optics

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: April 3, 2013
Revised Manuscript: May 16, 2013
Manuscript Accepted: May 17, 2013
Published: June 18, 2013

Virtual Issues
Vol. 8, Iss. 7 Virtual Journal for Biomedical Optics

Citation
Alexis Speck, Benedikt Zelzer, Marc Kannengießer, Achim Langenbucher, and Timo Eppig, "Inspection of freeform intraocular lens topography by phase measuring deflectometric methods," Appl. Opt. 52, 4279-4286 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-52-18-4279


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. A. Langenbucher, T. Eppig, B. Seitz, and E. Janunts, “Customized aspheric IOL design by raytracing through the eye containing quadric surfaces,” Curr. Eye Res. 36, 637–646 (2011). [CrossRef]
  2. Z. Zhu, E. Janunts, T. Eppig, T. Sauer, and A. Langenbucher, “Tomography-based customized IOL calculation model,” Curr. Eye Res. 36, 579–589 (2011). [CrossRef]
  3. M. Lombardo, M. P. De Santo, G. Lombardo, R. Barberi, and S. Serrao, “Analysis of intraocular lens surface properties with atomic force microscopy,” J. Cataract Refract. Surg. 32, 1378–1384 (2006). [CrossRef]
  4. M. Lombardo, S. Talu, M. Talu, S. Serrao, and P. Ducoli, “Surface roughness of intraocular lenses with different dioptric powers assessed by atomic force microscopy,” J. Cataract Refract. Surg. 36, 1573–1578 (2010). [CrossRef]
  5. M. Kannengiesser, Z. Zhu, A. Langenbucher, and E. Janunts, “Evaluation of free-form IOL topographies by clinically available topographers,” Z. Med. Phys. 22, 215–223 (2012). [CrossRef]
  6. J. Pfund, N. Lindlein, J. Schwider, R. Burow, T. Blumel, and K. E. Elssner, “Absolute sphericity measurement: a comparative study of the use of interferometry and a Shack-Hartmann sensor,” Opt. Lett. 23, 742–744 (1998). [CrossRef]
  7. Trioptics GmbH, “Flexible and reliable wavefront measurement,” http://www.trioptics.com/wavemaster/description.php (accessed 21 February 2013).
  8. Optocraft GmbH, “SHSOphthalmic autoROC—Shape and surface testing of intra ocular lenses and contact lenses,” http://www.optocraft.de/products/SHSautoROC/index.en.php (accessed 21 February 2013).
  9. S. A. Phasics, “Kaleo-R IOL: Surface characterization for ophthalmologic lenses industry,” http://www.phasicscorp.com/products/kaleo-range/kaleo-r-iol.html (accessed March 2013).
  10. Trioptics GmbH, “OptiSpheric—the industry’s standard for lens testing. Product sheet,” http://www.trioptics.de/pdfs/OptiSpheric_E_2006.pdf (accessed March 2013).
  11. LAMBDA-X, “NIMO TR0815—refractive intraocular lens power mapper and wavefront analyzer. Product sheet,” http://www.lambda-x.com/documents/LX-TR0815.pdf (accessed 3/2013).
  12. Rotlex (1994) Ltd., “Introducing the IOLA PLUS lens analyzer,” http://www.rotlex.com/IolaPlus.asp (accessed 21 February 2013).
  13. Rotlex (1994) Ltd., “IOLA—Introducing the IOLA MultiFocal. Product sheet,” http://www.rotlex.com/IolaMF.asp (accessed February 2013).
  14. S. A. Phasics, “Kaleo-i: Complete and fast accurate IOL quality control,” http://www.phasicscorp.com/products/kaleo-range/kaleo-i.html (accessed 3/2013).
  15. T. Eppig and A. Langenbucher, “Measurement systems for intraocular lenses. Part I—A comprehensive overview on techniques and devices,” in Global CONTACT (MediaWelt GmbH, 2011), pp. 36–39, http://de.calameo.com/read/0001260654f441abc6333 .
  16. L. Joannes, T. Hough, X. Hutsebaut, X. Dubois, R. Ligot, B. Saoul, P. Van Donink, and K. DeConinck, “The reproducibility of a new power mapping instrument based on the phase shifting Schlieren method for the measurement of spherical and toric contact lenses,” Cont. Lens Anterior Eye 33, 3–8 (2010). [CrossRef]
  17. Lambda-X SA, “CURV—Radius of curvature. Product sheet,” http://www.lambda-x.com/documents/LX-CURV.pdf (accessed 8 March 2013).
  18. T. Eppig, M. Gillner, Z. K. J. Jäger, A. Löffler, and A. Langenbucher, “Biomechanical eye model and measurement setup for investigating accommodating intraocular lenses,” Z. Med. Phys. 23, 144–152 (2013).
  19. E. Acosta, S. Chamadoira, and R. Blendowske, “Modified point diffraction interferometer for inspection and evaluation of ophthalmic components,” J. Opt. Soc. Am. A 23, 632–637 (2006). [CrossRef]
  20. T. Eppig, K. Scholz, and A. Langenbucher, “Assessing the optical performance of multifocal (diffractive) intraocular lenses,” Ophthalmic Physiolog. Opt. 28, 467–474 (2008). [CrossRef]
  21. W. Boucher, S. Velghe, B. Wattellier, and D. Gatinel, “Intraocular lens characterization using a quadri-wave lateral shearing interferometer wave front sensor” Proc. SPIE 7102, 71020Q (2008). [CrossRef]
  22. M. C. Knauer, C. Richter, O. Hybl, J. Kaminski, C. Faber, and G. Häusler, “Deflectometry rivals interferometry—Deflektometrie macht der Interferometrie Konkurrenz,” Tm.Tech. Mess. 76, 175–181 (2009). [CrossRef]
  23. M. C. Knauer, J. Kaminski, and G. Häusler, “Phase measuring deflectometry: a new approach to measure specular free-form surfaces,” Proc. SPIE 5457, 366–376 (2004). [CrossRef]
  24. Schneider GmbH & Co.KG, “PMD 100-T—Phase measuring deflectometry,” http://www.schneider-om.com/en/products/ophthalmics/measuring/pmd-100-t.html (accessed 21 February 2013).
  25. A. Schulze and E. Dietrich, “Statistical methods for machine and process qualification,” Carl Hanser Verlag GmbH & CO. KG (2009).
  26. S. Kammel, “Deflectometrical analysis of specular reflecting free form surfaces,” Ph.D. thesis (Universitätsverlag Karlsruhe, 2005).
  27. A. Speck, B. Zelzer, A. Langenbucher, and T. Eppig, “Deflectometry for surface inspection and shape fidelity analysis for manufacturing and polishing of safety spectacle molds,” DgaO Proc. 113, 30 (2012).
  28. B. Zelzer, A. Speck, A. Langenbucher, and T. Eppig, “Theoretical model for design and analysis of protectional eyewear,” Z. Med. Phys. 23, 120–128 (2013).
  29. M. Gillner, A. Langenbucher, and T. Eppig, “Investigation of the theoretical image quality of aspheric intraocular lenses by decentration. Hoya AF-1 iMics1 und Zeiss ASPHINA (Invent ZO),” Ophthalmologe 109, 263–270 (2012).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited