Journal of Cataract & Refractive Surgery
Volume 33, Issue 10 , Pages 1701-1707 , October 2007

Central corneal thickness measurement with Pentacam, Orbscan II, and ultrasound devices before and after laser refractive surgery for myopia

  • Hassan Hashemi, MD
    • ,
  • Shiva Mehravaran, MD

      Affiliations

    • Corresponding Author InformationCorresponding author: Shiva Mehravaran, MD, Noor Ophthalmology Research Center, Noor Eye Hospital, Number 106 Esfandiar Boulevard, Vali'asr Avenue, Tehran, 19686-53111, Iran.

,Accepted 30 May 2007.

References 

  1. Pflugfelder SC, Liu Z, Feuer W, Verm A. Corneal thickness indices discriminate between keratoconus and contact lens-induced corneal thinning. Ophthalmology. 2002;109:2336–2341
  2. Moezzi AM, Fonn D, Simpson TL, Sorbara L. Contact lens-induced corneal swelling and surface changes measured with the Orbscan II corneal topographer. Optom Vis Sci. 2004;81:189–193
  3. Price FW, Koller DL, Price MO. Central corneal pachymetry in patients undergoing laser in situ keratomileusis. Ophthalmology. 1999;106:2216–2220
  4. Javaloy J, Vidal MT, Villada JR, et al. Comparison of four corneal pachymetry techniques in corneal refractive surgery. J Refract Surg. 2004;20:29–34
  5. Swartz T, Liu Z, Yang X, et al. Topographic technologies. In:  Wang M editors. Corneal Topography in the Wavefront Era; a Guide for Clinical Application. Thorofare, NJ: Slack; 2006;p. 31–39
  6. Iskander NG, Anderson Penno E, Peters NT, et al. Accuracy of Orbscan pachymetry measurements and DHG ultrasound pachymetry in primary laser in situ keratomileusis and LASIK enhancement procedures. J Cataract Refract Surg. 2001;27:681–685
  7. Chakrabarti HS, Craig JP, Brahma A, et al. Comparison of corneal thickness measurements using ultrasound and Orbscan slit-scanning topography in normal and post-LASIK eyes. J Cataract Refract Surg. 2001;27:1823–1828
  8. Sallet G. Comparison of optical and ultrasound central corneal pachymetry. Bull Soc Belge Ophtalmol. 2001;281:35–38Available at: www.ophthalmologia.be/download.php?dof_id=115Accessed June 13, 2007
  9. Giessler S, Duncker GIW. Orbscan pachymetry after LASIK is not reliable. [letter] J Refract Surg. 2001;17:385–387
  10. Boscia F, La Tegola MG, Alessio G, Sborgia C. Accuracy of Orbscan optical pachymetry in corneas with haze. J Cataract Refract Surg. 2002;28:253–258
  11. Lattimore MR, Kaupp S, Schallhorn S, Lewis R. Orbscan pachymetry; implications of a repeated measures and diurnal variation analysis. Ophthalmology. 1999;106:977–981
  12. Bland JM, Altman DG. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet. 1986;1:307–310
  13. Sanhermelando MV, Lleó A, Alonso L, et al. Repeatability of central corneal thickness and ocular anterior chamber depth measurements with the Orbscan topography system. Eur J Anat. 2002;6:59–64Available at: http://www.sociedadanatomica.es/EuropeanJournalofAnatomy/SUMMARIES/4022D99E-E846-4D7E-89AC-15D5636F8343_files/EJA_V6_N2_01.pdfAccessed June 13, 2007
  14. Fam H-B, Lim K-L, Reinstein DZ. Orbscan global pachymetry: analysis of repeated measures. Optom Vis Sci. 2005;82:1047–1053
  15. Rabsilber TM, Becker KA, Auffarth GU. Reliability of Orbscan II topography measurements in relation to refractive status. J Cataract Refract Surg. 2005;31:1607–1613
  16. Yaylali V, Kaufman SC, Thompson HW. Corneal thickness measurements with the Orbscan Topography System and ultrasonic pachymetry. J Cataract Refract Surg. 1997;23:1345–1350
  17. Marsich MM, Bullimore MA. The repeatability of corneal thickness measures. Cornea. 2000;19:792–795
  18. Wong AC-M, Wong C-C, Yuen NS-Y, Hui S-P. Correlational study of central corneal thickness measurements on Hong Kong Chinese using optical coherence tomography, Orbscan and ultrasound pachymetry. Eye. 2002;16:715–721
  19. Nichols JJ, Kosunick GM, Bullimore MA. Reliability of corneal thickness and endothelial cell density measures. J Refract Surg. 2003;19:344–352
  20. Suzuki S, Oshika T, Oki K, et al. Corneal thickness measurements: scanning-slit corneal topography and noncontact specular microscopy versus ultrasonic pachymetry. J Cataract Refract Surg. 2003;29:1313–1318
  21. Jonuscheit S, Doughty MJ. Regional repeatability measures of corneal thickness: Orbscan II and ultrasound. Optom Vis Sci. 2007;84:52–58
  22. Barkana Y, Gerber Y, Elbaz U, et al. Central corneal thickness measurement with the Pentacam Scheimpflug system, optical low-coherence reflectometry pachymeter, and ultrasound pachymetry. J Cataract Refract Surg. 2005;31:1729–1735
  23. O'Donnell C, Maldonado-Codina C. Agreement and repeatability of central thickness measurement in normal corneas using ultrasound pachymetry and the OCULUS Pentacam. Cornea. 2005;24:920–924
  24. Uçakhan ÖÖ, Özkan M, Kanpolat A. Corneal thickness measurements in normal and keratoconic eyes: Pentacam comprehensive eye scanner versus noncontact specular microscopy and ultrasound pachymetry. J Cataract Refract Surg. 2006;32:970–977
  25. Lackner B, Schmidinger G, Pieh S, et al. Repeatability and reproducibility of central corneal thickness measurement with Pentacam, Orbscan, and ultrasound. Optom Vis Sci. 2005;82:892–899
  26. Módis L, Langenbucher A, Seitz B. Scanning-slit and specular microscopic pachymetry in comparison with ultrasonic determination of corneal thickness. Cornea. 2001;20:711–714
  27. Rainer G, Findl O, Petternel V, et al. Central corneal thickness measurements with partial coherence interferometry, ultrasound, and the Orbscan system. Ophthalmology. 2004;111:875–879
  28. Fakhry MA, Artola A, Belda JI, et al. Comparison of corneal pachymetry using ultrasound and Orbscan II. J Cataract Refract Surg. 2002;28:248–252
  29. Gonzalez-Méijome JM, Cerviño A, Yebra-Pimentel E, Parafita MA. Central and peripheral corneal thickness measurement with Orbscan II and topographical ultrasound pachymetry. J Cataract Refract Surg. 2003;29:125–132
  30. McLaren JW, Nau CB, Erie JC, Bourne WM. Corneal thickness measurement by confocal microscopy, ultrasound, and scanning slit methods. Am J Ophthalmol. 2004;137:1011–1020
  31. Gherghel D, Hosking SL, Mantry S, et al. Corneal pachymetry in normal and keratoconic eyes: Orbscan II versus ultrasound. J Cataract Refract Surg. 2004;30:1272–1277
  32. Hashemi H, Yazdani K, Mehravaran S, Fotouhi A. Central corneal thickness measurement with Orbscan II and an ultrasound pachymeter. J Iran Soc Ophthalmol. 2004;4(17):1–9
  33. Basmak H, Sahin A, Yildirim N. The reliability of central corneal thickness measurements by ultrasound and by Orbscan system in schoolchildren. Curr Eye Res. 2006;31:569–575
  34. Thomas J, Wang J, Rollins AM, Sturm J. Comparison of corneal thickness measured with optical coherence tomography, ultrasonic pachymetry, and a scanning slit method. J Refract Surg. 2006;22:671–678
  35. Kawana K, Tokunaga T, Miyata K, et al. Comparison of corneal thickness measurements using Orbscan II, non-contact specular microscopy, and ultrasonic pachymetry in eyes after laser in situ keratomileusis. Br J Ophthalmol. 2004;88:466–468
  36. Kawana K, Miyata K, Tokunaga T, et al. Central corneal thickness measurements using Orbscan II scanning slit topography, noncontact specular microscopy, and ultrasonic pachymetry in eyes with keratoconus. Cornea. 2005;24:967–971
  37. Cheng ACK, Rao SK, Tang E, Lam DSC. Pachymetry assessment with Orbscan II in postoperative patients with myopic LASIK. J Refract Surg. 2006;22:363–366
  38. Haque S, Simpson T, Jones L. Corneal and epithelial thickness in keratoconus: a comparison of ultrasonic pachymetry, Orbscan II, and optical coherence tomography. J Refract Surg. 2006;22:486–493

 Neither author has a financial or proprietary interest in any material or method mentioned.

 Presented at the XXIV Congress of the European Society of Cataract & Refractive Surgeons, London, United Kingdom, September 2006.

PII: S0886-3350(07)01186-8

doi: 10.1016/j.jcrs.2007.05.040

Journal of Cataract & Refractive Surgery
Volume 33, Issue 10 , Pages 1701-1707 , October 2007

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