Journal of Cataract & Refractive Surgery
Volume 34, Issue 3 , Pages 368-376 , March 2008

Sources of error in intraocular lens power calculation

  • Sverker Norrby, PhD

      Affiliations

    • Corresponding Author InformationCorresponding author: Sverker Norrby, PhD, Chief Scientist, AMO Groningen BV, NL-9728 NX, Groningen, The Netherlands.

,Accepted 16 October 2007.

References 

  1. Olsen T. Sources of error in intraocular lens power calculation. J Cataract Refract Surg. 1992;18:125–129
  2. Norrby S. The Dubbelman eye model analysed by ray tracing through aspheric surfaces. Ophthalmic Physiol Opt. 2005;25:153–161
  3. Haigis W, Lege B, Miller N, Schneider B. Comparison of immersion ultrasound biometry and partial coherence interferometry for intraocular lens calculation according to Haigis. Graefe's Arch Clin Exp Ophthalmol. 2000;238:765–773
  4. Norrby S. Multicenter biometry study of 1 pair of eyes. J Cataract Refract Surg. 2001;27:1656–1661
  5. Lim MCC, Hoh S-T, Foster PJ, et al. Use of optical coherence tomography to assess variations in macular retinal thickness in myopia. Invest Ophthalmol Vis Sci. 2005;46:974–978
  6. Dubbelman M, Sicam VADP, van der Heijde GL. The shape of the anterior and posterior surface of the aging human cornea. Vision Res. 2006;46:993–1001
  7. Dubbelman M, Weeber HA, van der Heijde RGL, Völker-Dieben HJ. Radius and asphericity of the posterior corneal surface determined by corrected Scheimpflug photography. Acta Ophthalmol Scand. 2002;80:379–383
  8. Gullstrand A. The optical system of the eye. In:  Southall JPC editors. Helmholtz's Treatise on Physiological Optics, translated from 3rd German edition. Rochester, NY: Optical Society of America; 1924;Vol. 1 Appendix II.3; 350–358. Available at: http://www.psych.upenn.edu/backuslab/helmholtzAccessed November 19, 2002
  9. Patel S, Marshall J, Fitzke FW. Refractive index of the human corneal epithelium and stroma. J Refract Surg. 1995;11:100–105
  10. In:  Duke-Elder S editors. System of Ophthalmology. Vol. 4: The Physiology of the Eye and Vision. St Louis, MO: Mosby; 1968;108, 201
  11. In:  Weast RC editors. CRC Handbook of Chemistry and Physics. 48th edition. Cleveland, OH: Chemical Rubber Co; 1967;p. E-160
  12. International Organization for Standardization. Ophthalmic Implants – Intraocular Lenses—Part 2: Optical Properties and Test Methods. Geneva, Switzerland, ISO 2000 (ISO 11979–2)
  13. Norrby NES, Grossman LW, Geraghty EP, et al. Accuracy in determining intraocular lens dioptric power assessed by interlaboratory tests. J Cataract Refract Surg. 1996;22:983–993
  14. Cheng ACK, Rao SK, Cheng LL, Lam DSC. Assessment of pupil size under different light intensities using the Procyon pupillometer. J Cataract Refract Surg. 2006;32:1015–1017
  15. Bullimore MA, Fusaro RE, Adams CW. The repeatability of automated and clinician refraction. Optom Vis Sci. 1998;75:617–622
  16. Holladay JT, Prager TC, Chandler TY, et al. A three-part system for refining intraocular lens power calculations. J Cataract Refract Surg. 1988;14:17–24
  17. Retzlaff JA, Sanders DR, Kraff MC. Development of the SRK/T intraocular lens implant power calculation formula. J Cataract Refract Surg. 1990;16:333–340correction, 528
  18. Hoffer KJ. The Hoffer Q formula: a comparison of theoretic and regression formulas. J Cataract Refract Surg. 1993;19:700–712errata 1994; 20:677
  19. Norrby S, Lydahl E, Koranyi G, Taube M. Reduction of trend errors in power calculation by linear transformation of measured axial lengths. J Cataract Refract Surg. 2003;29:100–105
  20. Haigis W. The Haigis formula. In:  Shammas HJ editors. Intraocular Lens Power Calculations. Thorofare, NJ: Slack; 2004;p. 41–57
  21. Olsen T. The Olsen formula. In:  Shammas HJ editors. Intraocular Lens Power Calculations. Thorofare, NJ: Slack; 2004;p. 27–40
  22. Norrby S, Lydahl E, Koranyi G, Taube M. Clinical application of the lens haptic plane concept with transformed axial lengths. J Cataract Refract Surg. 2005;31:1338–1344
  23. Haigis W. Biometrie. In:  Straub W,  Kroll P,  Küchle HJ editor. Augenärtzliche Untersuchungsmethoden. 2nd ed.. Stuttgart, Germany: Ferdinand Enke Verlag; 1995;p. 255–304
  24. Norrby S, Lydahl E, Koranyi G, Taube M. Comparison of 2 A-scans. J Cataract Refract Surg. 2003;29:95–99
  25. International Organization of Standardization. Ophthalmic Implants—Intraocular Lenses—Part 3: Mechanical Properties and Test Methods. Geneva, Switzerland, ISO 2006 (ISO 11979–3)
  26. Leinonen J, Laakkonen E, Laatikainen L. Repeatability (test-retest variability) of refractive error measurement in clinical settings. Acta Ophthalmol Scand. 2006;84:532–536
  27. Zadnik K, Mutti DO, Adams AJ. The repeatability of measurement of the ocular components. Invest Ophthalmol Vis Sci. 1992;33:2325–2333
  28. Sheng H, Bottjer CA, Bullimore MA. Ocular component measurement using the Zeiss IOLMaster. Optom Vis Sci. 2004;81:27–34
  29. Olsen T. Improved accuracy of intraocular lens power calculation with the Zeiss IOLMaster. Acta Ophthalmol Scand. 2007;85:84–87
  30. Preussner P-R, Wahl J, Weitzel D. Topography-based intraocular lens power selection. J Cataract Refract Surg. 2005;31:525–533
  31. International Organization for Standardization. Medical Devices – Quality Assurance Systems—Requirements for Regulatory Purposes. Geneva, Switzerland (ISO 13485)

 The author has no financial or proprietary interest in any material or method mentioned.

 Presented in part at the ASCRS Symposium on Cataract, IOL and Refractive Surgery, San Francisco, California, USA, March 2006.

PII: S0886-3350(07)02047-0

doi: 10.1016/j.jcrs.2007.10.031

Journal of Cataract & Refractive Surgery
Volume 34, Issue 3 , Pages 368-376 , March 2008