Skip to main content

Using Optical Coherence Tomography for IOL Power Calculations in Eyes with Prior Ablative Corneal Surgery

  • Chapter
  • First Online:
Cataract Surgery: Maximizing Outcomes Through Research
  • 846 Accesses

Abstract

While corneal refractive surgery produces excellent visual outcomes, the changes it produces in anterior corneal curvature make it more difficult to accurately calculate corneal refractive power for intraocular lens (IOL) calculations. The development by Hill, Wang, and Koch of the ASCRS online calculator in 2007 facilitated more accurate IOL power calculations in eyes that have undergone corneal refractive surgery. Since then, novel techniques such as optical coherence tomography (OCT) have been utilized to further improve IOL power calculation accuracy.

The following chapter discusses the preliminary results of one such study presented by Wang et al. at the annual ASCRS meeting in 2013. Their prospective study included a group of 28 eyes of 24 patients at one institution enrolled between November 2010 and March 2012. The study validates the OCT-based IOL power formula developed by Tang et al. and compares it to methods using the ASCRS calculator.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 84.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 159.00
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 109.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

References

  1. Koch D, Liu J, Hyde L, Rock R, Emery J. Refractive complications of cataract surgery after radial keratotomy. Am J Ophthalmol. 1989;108:676–82.

    PubMed  CAS  Google Scholar 

  2. Seitz B, Langenbucher A, Nguyen NX, Kus MM, Ku ̈chle M. Underestimation of intraocular lens power for cataract surgery after myopic photorefractive keratectomy. Ophthalmology. 1999;106:6936–702.

    Google Scholar 

  3. Gimbel H, Sun R. Accuracy and predictability of intraocular lens power calculation after laser in situ keratomileusis. J Cataract Refract Surg. 2001;27:571–6.

    Article  PubMed  CAS  Google Scholar 

  4. Aramberri J. Intraocular lens power calculation after corneal refractive surgery: double-K method. J Cataract Refract Surg. 2003;29:2063–8.

    Article  PubMed  Google Scholar 

  5. Koch D, Wang L. Calculating IOL power in eyes that have had refractive surgery [editorial]. J Cataract Refract Surg. 2003;29:2039–42.

    Article  PubMed  Google Scholar 

  6. Wang L, Hill W, Koch D. Evaluation of intraocular lens power prediction methods using the American Society of cataract and refractive surgeons power-Keratorefractive intraocular lens power calculator. J Cataract Refract Surg. 2010;36:1466–73.

    Article  PubMed  Google Scholar 

  7. Srivannaboon S, Reinstein D, Sutton H, Holland S. Accuracy of Orbscan total optical power maps in detecting refractive change after myopic laser in situ keratomileusis. J Cataract Refract Surg. 1999;25:1596–9.

    Article  PubMed  CAS  Google Scholar 

  8. Leyland M. Validation of Orbscan II posterior corneal curvature measurement for intraocular lens power calculation. Eye. 2004;18:357–60.

    Article  PubMed  CAS  Google Scholar 

  9. Sonego-Krone S, Lopez-Moreno G, Beaujon-Balbi O, Arce C, Schor P, Campos M. A direct method to measure the power of the central cornea after myopic laser in situ keratomileusis. Arch Ophthalmol. 2004;122:159–66.

    Article  PubMed  Google Scholar 

  10. Khurana R, Li Y, Tang M, Lai M, Huang D. High-speed optical coherence tomography of corneal opacities. Ophthalmology. 2007;114:1278–85.

    Article  PubMed  Google Scholar 

  11. Boscia F, La Tegola M, Alessio G, Sborgia C. Accuracy of Orbscan optical pachymetry in corneas with haze. J Cataract Refract Surg. 2002;28:253–8.

    Article  PubMed  Google Scholar 

  12. Kim S, Byun Y, Kim E, Kim T. Central corneal thickness measurements in unoperated eyes and eyes after PRK for myopia using Pentacam, Orbscan II, and ultrasonic pachymetry. J Refract Surg. 2007;23:888–94.

    PubMed  Google Scholar 

  13. Prisant O, Calderon N, Chastang P, Gatinel D, Hoang-Xuan T. Reliability of pachymetric measurements using Orbscan after excimer refractive surgery. Ophthalmology. 2003;110:511–5.

    Article  PubMed  Google Scholar 

  14. Tang M, Li Y, Avila M, Huang D. Measuring total corneal power before and after laser in situ keratomileusis with high-speed optical coherence tomography. J Cataract Refract Surg. 2006;32:1843–50.

    Article  PubMed  PubMed Central  Google Scholar 

  15. Tang M, Chen A, Li Y, Huang D. Corneal power measurement with Fourier-domain optical coherence tomography. J Cataract Refract Surg. 2010;36:2115–22.

    Article  PubMed  PubMed Central  Google Scholar 

  16. Tang M, Li Y, Huang D. An intraocular lens power calculation formula based on optical coherence tomography: a pilot study. J Refract Surg. 2010;26:430–7.

    Article  PubMed  PubMed Central  Google Scholar 

  17. Tang M, Wang L, Koch D, Li Y, Huang D. Intraocular lens power calculation after previous myopic laser vision correction based on corneal power measured by Fourier-domain optical coherence tomography. J Cataract Refract Surg. 2012;38:589–94.

    Article  PubMed  PubMed Central  Google Scholar 

  18. Waisbren E, Wang L, Tang M, Koch D. Intraocular lens power prediction in eyes with prior radial keratotomy using Fourier-domain optical coherence tomography. Poster presented at the Annual Meeting of the Association for Research in Vision and Ophthalmology. Seattle; 2013. 5–9 May 2013

    Google Scholar 

  19. Wang L, Koch D, Jenkins R, Tang M, Li Y, Huang D. IOL power calculations with optical coherence tomography based formula and formulas from the ASCRS calculator in Post-LASIK/PRK eyes. Presented at the American Society of Cataract and Refractive Surgery Symposium and Congress. San Francisco; 2013. 19–23 April 2013

    Google Scholar 

  20. Haigis W. Intraocular lens calculation after refractive surgery for myopia: Haigis-L formula. J Cataract Refract Surg. 2008;34:1658–63.

    Article  PubMed  Google Scholar 

  21. Savini G, Barboni P, Carbonelli M, Hoffer K. Comparison of methods to measure corneal power for intraocular lens power calculation using a rotating scheimpflug camera. J Cataract Refract Surg. 2013;39:598–604.

    Article  PubMed  Google Scholar 

  22. Koch D. New options for IOL calculations after refractive surgery [editorial]. J Cataract Refract Surg. 2006;32:372.

    Google Scholar 

  23. Randleman J, Foster J, Loupe D, Song C, Stulting R. Intraocular lens power calculations after refractive surgery: consensus-K technique. J Cataract Refract Surg. 2007;33:1892–8.

    Article  PubMed  Google Scholar 

Download references

Conflicts of Interest

Abbott Medical Optics (DDK)

Alcon (DDK)

I-optics (DDK, MPW)

Revision Optics (DDK)

Ziemer (DDK, MPW, LW)

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Emily Waisbren M.D. .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2014 Springer Japan

About this chapter

Cite this chapter

Waisbren, E., Wang, L., Weikert, M.P., Koch, D.D. (2014). Using Optical Coherence Tomography for IOL Power Calculations in Eyes with Prior Ablative Corneal Surgery. In: Bissen-Miyajima, H., Koch, D., Weikert, M. (eds) Cataract Surgery: Maximizing Outcomes Through Research. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54538-5_5

Download citation

  • DOI: https://doi.org/10.1007/978-4-431-54538-5_5

  • Published:

  • Publisher Name: Springer, Tokyo

  • Print ISBN: 978-4-431-54537-8

  • Online ISBN: 978-4-431-54538-5

  • eBook Packages: MedicineMedicine (R0)

Publish with us

Policies and ethics