Orbscan global pachymetry: Analysis of repeated measures

Optometry and Vision Science

Volumn 82, Issue 12, 2005, Pages 1047-1053

  Fam, Han Bor ^a   Lim, Kooi Ling ^b   Reinstein, Dan Z ^c  

^a TAN TOCK SENG HOSPITAL   (Singapore)

^b iLaser Centre Malaysia   (Malaysia)

^c LONDON VISION CLINIC   (United Kingdom)

Author keywords

Clinical performance; Global pachymetry; Orbscan corneal topography; Repeatability

Indexed keywords

DATA REDUCTION; OPTICAL CORRELATION; OPTOMETERS; SCANNING;

CLINICAL PERFORMANCE; GLOBAL PACHYMETRY; ORBSCAN CORNEAL TOPOGRAPHY; REPEATABILITY;

VISION;

ARTICLE; CALCULATION; CONFIDENCE INTERVAL; CORNEA; CORRELATION COEFFICIENT; MULTIVARIATE ANALYSIS OF COVARIANCE; OPHTHALMOLOGY; PRIORITY JOURNAL;

CONFIDENCE INTERVALS; CORNEA; CORNEAL TOPOGRAPHY; EQUIPMENT DESIGN; HUMANS; REFERENCE VALUES; REPRODUCIBILITY OF RESULTS;

EID: 29344455749     PISSN: 10405488     EISSN: None     Source Type: Journal    
DOI: 10.1097/01.opx.0000192348.37026.09     Document Type: Article

References (38)

1. Maurice DM. The location of the fluid pump in the cornea. J Physiol 1972;221:43-54.
2. Lattimore MR Jr, Kaupp S, Schallhorn S, Lewis RT. Orbscan pachymetry: implications of a repeated measures and diurnal variation analysis. Ophthalmology 1999;106:977-81.
3. Rabinowitz YS, Rasheed K, Yang H, Elashoff J. Accuracy of ultrasonic pachymetry and videokeratography in detecting keratoconus. J Cataract Refract Surg 1998;24:196-201.
4. Pflugfelder SC, Liu Z, Feuer W, Verm A. Corneal thickness indices discriminate between keratoconus and contact lens-induced corneal thinning. Ophthalmology 2002;109:2336-41.
5. Pallikaris IG, Siganos DS. Excimer laser in situ keratomileusis and photorefractive keratectomy for correction of high myopia. J Refract Corneal Surg 1994;10:498-510.
6. Liu Z, Huang AJ, Pflugfelder SC. Evaluation of corneal thickness and topography in normal eyes using the Orbscan corneal topography system. Br J Ophthalmol 1999;83:774-8.
7. Salz JJ, Azen SP, Berstein J, Caroline P, Villasenor RA, Schanzlin DJ. Evaluation and comparison of sources of variability in the measurement of corneal thickness with ultrasonic and optical pachymeters. Ophthalmic Surg 1983;14:750-4.
8. Villasenor RA, Santos VR, Cox KC, Harris DF 2nd, Lynn M, Waring GO 3rd. Comparison of ultrasonic corneal thickness measurements before and during surgery in the prospective evaluation of Radial Keratotomy (PERK) Study. Ophthalmology 1986;93:327-30.
9. Gordon A, Boggess EA, Molinari JF. Variability of ultrasonic pachometry. Optom Vis Sci 1990;67:162-5.
10. Wirbelauer C, Scholz C, Hoerauf H, Pham DT, Laqua H, Birngruber R. Noncontact corneal pachymetry with slit lamp-adapted optical coherence tomography. Am J Ophthalmol 2002;133:444-50.
11. Bechmann M, Thiel MJ, Neubauer AS, Ullrich S, Ludwig K, Kenyon KR, Ulbig MW. Central corneal thickness measurement with a retinal optical coherence tomography device versus standard ultrasonic pachymetry. Cornea 2001;20:50-4.
12. Hitzenberger CK, Drexler W, Dolezal C, Skorpik F, Juchem M, Fercher AF, Gnad HD. Measurement of the axial length of cataract eyes by laser Doppler interferometry. Invest Ophthalmol Vis Sci 1993;34:1886-93.
13. Reinstein DZ, Silverman RH, Rondeau MJ, Coleman DJ. Epithelial and corneal thickness measurements by high-frequency ultrasound digital signal processing. Ophthalmology 1994;101:140-6.
14. Tam ES, Rootman DS. Comparison of central corneal thickness measurements by specular microscopy, ultrasound pachymetry, and ultrasound biomicroscopy. J Cataract Refract Surg 2003;29:1179-84.
15. Bohnke M, Chavanne P, Gianotti R, Salathe RP. Continuous non-contact corneal pachymetry with a high speed reflectometer. J Refract Surg 1998;14:140-6.
16. Wirbelauer C, Aurich H, Jaroszewski J, Hartmann C, Pham DT. Experimental evaluation of online optical coherence pachymetry for corneal refractive surgery. Graefes Arch Clin Exp Ophthalmol 2004;242:24-30.
17. Rabinowitz YS, Rasheed K, Yang H, Elashoff J. Accuracy of ultrasonic pachymetry and videokeratography in detecting keratoconus. J Cataract Refract Surg 1998;24:196-201.
18. Yaylali V, Kaufman SC, Thompson HW. Corneal thickness measurements with the Orbscan Topography System and ultrasonic pachymetry. J Cataract Refract Surg 1997;23:1345-50.
19. 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.
20. Kawana K, Tokunaga T, Miyata K, Okamoto F, Kiuchi T, Oshika T. 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;88:466-8.
21. Marsich MW, Bullimore MA. The repeatability of corneal thickness measures. Cornea 2000;19:792-5.
22. Suzuki S, Oshika T, Oki K, Sakabe I, Iwase A, Amano S, Araie M. Corneal thickness measurements: scanning-slit corneal topography and noncontact specular microscopy versus ultrasonic pachymetry. J Cataract Refract Surg 2003;29:1313-8.
23. Gonzalez-Meijome JM, Cervino A, Yebra-Pimentel E, Parafita MA. Central and peripheral corneal thickness measurement with Orbscan II and topographical ultrasound pachymetry. J Cataract Refract Surg 2003;29:125-32.
24. Fakhry MA, Artola A, Belda JI, Ayala MJ, Alio JL. Comparison of corneal pachymetry using ultrasound and Orbscan II. J Cataract Refract Surg 2002;28:248-52.
25. Rainer G, Findl O, Petternel V, Kiss B, Drexler W, Skorpik C, Georgopoulos M, Schmetterer L. Central corneal thickness measurements with partial coherence interferometry, ultrasound, and the Orbscan system. Ophthalmology 2004;111:875-9.
26. Javaloy J, Vidal MT, Villada JR, Artola A, Alio JL. Comparison of four corneal pachymetry techniques in corneal refractive surgery. J Refract Surg 2004;20:29-34.
27. Gherghel D, Hosking SL, Mantry S, Banerjee S, Naroo SA, Shah S. Corneal pachymetry in normal and keratoconic eyes: Orbscan II versus ultrasound. J Cataract Refract Surg 2004;30:1272-7.
28. Cho P, Cheung SW. Repeatability of corneal thickness measurements made by a scanning slit topography system. Ophthal Physiol Opt 2002;22:505-10.
29. Modis L Jr, Langenbucher A, Seitz B. Evaluation of normal corneas using the scanning-slit topography/pachymetry system. Cornea 2004;23:689-94.
30. Cairns G, McGhee CN. Orbscan computerized topography: attributes, applications, and limitations. J Cataract Refract Surg 2005;31:205-20.
31. Lafond G, Bonnet S, Solomon L. Treatment of previous decentered excimer laser ablation with combined myopic and hyperopic ablations. J Refract Surg 2004;20:139-48.
32. Alessio G, Boscia F, La Tegola MG, Sborgia C. Topography-driven photorefractive keratectomy: results of corneal interactive programmed topographic ablation software. Ophthalmology 2000;107:1578-87.
33. Huang B. Update on nonexcimer laser refractive surgery technique: conductive keratoplasty. Curr Opin Ophthalmol 2003;14:203-6.
34. Kymionis GD, Titze P, Markomanolakis MM, Aslanides IM, Pallikaris IG. Corneal perforation after conductive keratoplasty with previous refractive surgery. J Cataract Refract Surg 2003;29:2452-4.
35. Uebersax JS. Intraclass Correlation and Related Methods. May 10, 2003. Available at: http://ourworld.compuserve.com/homepages/jsuebersax/icc.htm. Accessed August 26, 2005.
36. Miglior S, Albe E, Guareschi M, Mandelli G, Gomarasca S, Orzalesi N. Intraobserver and interobserver reproducibility in the evaluation of ultrasonic pachymetry measurements of central corneal thickness. Br J Ophthalmol 2004;88:174-7.
37. Rainer G, Petternel V, Findl O, Schmetterer L, Skorpik C, Luksch A, Drexler W. Comparison of ultrasound pachymetry and partial coherence interferometry in the measurement of central corneal thickness. J Cataract Refract Surg 2002;28:2142-5.
38. Jonsson M, Behndig A. Pachymetric evaluation prior to laser in situ keratomileusis. J Cataract Refract Surg 2005;31:701-6.