Accuracy of Corneal Astigmatism Estimation by Neglecting the Posterior Corneal Surface Measurement

American Journal of Ophthalmology

Volumn 147, Issue 5, 2009, Pages

  Ho, Jau Der ^a,b   Tsai, Ching Yao ^c,d   Liou, Shiow Wen ^b,c,e  

^a TAIPEI MEDICAL UNIVERSITY HOSPITAL   (Taiwan)

^b TAIPEI MEDICAL UNIVERSITY   (Taiwan)

^c TAIPEI CITY HOSPITAL   (Taiwan)

^d NATIONAL YANG MING UNIVERSITY   (Taiwan)

^e NATIONAL TAIWAN UNIVERSITY HOSPITAL   (Taiwan)

Author keywords

[No Author keywords available]

Indexed keywords

ANALYTICAL ERROR; ARTICLE; ASTIGMATISM; CAMERA; CORNEA; HUMAN; KERATOMETRY; MAJOR CLINICAL STUDY; MATHEMATICAL ANALYSIS; MEASUREMENT; OBSERVATIONAL STUDY; PRIORITY JOURNAL; PROSPECTIVE STUDY;

EID: 64449088425     PISSN: 00029394     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ajo.2008.12.020     Document Type: Article

References (33)

1. Goss D.A., and West R.W. Introduction to the Optics of the Eye (2002), Butterworth-Heinemann, Oxford, United Kingdom 113-135
2. Leyland M. Validation of Orbscan II posterior corneal curvature measurement for intraocular lens power calculation. Eye 18 (2004) 357-360
3. Olsen T. On the calculation of power from curvature of the cornea. Br J Ophthalmol 70 (1986) 152-154
4. Seitz B., Langenbucher A., Nguyen N.X., et al. Underestimation of intraocular lens power for cataract surgery after myopic photorefractive keratectomy. Ophthalmology 106 (1999) 693-702
5. Gimbel H.V., and Sun R. Accuracy and predictability of intraocular lens power calculation after laser in situ keratomileusis. J Cataract Refract Surg 27 (2001) 571-576
6. Randleman J.B., Loupe D.N., Song C.D., et al. Intraocular lens power calculations after laser in situ keratomileusis. Cornea 21 (2002) 751-755
7. Hamed A.M., Wang L., Misra M., and Koch D.D. A comparative analysis of five methods of determining corneal refractive power in eyes that have undergone myopic laser in situ keratomileusis. Ophthalmology 109 (2002) 651-658
8. Hamilton D.R., and Hardten D.R. Cataract surgery in patients with prior refractive surgery. Curr Opin Ophthalmol 14 (2003) 44-53
9. Gimbel H.V., Sun R., Furlong M.T., et al. Accuracy and predictability of intraocular lens power calculation after photorefractive keratectomy. J Cataract Refract Surg 26 (2000) 1147-1151
10. Royston J.M., Dunne M.C., and Barnes D.A. Measurement of posterior corneal surface toricity. Optom Vis Sci 67 (1990) 757-763
11. Dunne M.C., Royston J.M., and Barnes D.A. Posterior corneal surface toricity and total corneal astigmatism. Optom Vis Sci 68 (1991) 708-710
12. Dunne M.C., Royston J.M., and Barnes D.A. Normal variations of the posterior corneal surface. Acta Ophthalmol (Copenh) 70 (1992) 255-261
13. Dubbelman M., Sicam V.A., and van der Heijde R.G.L. The shape of the anterior and posterior surface of the aging human cornea. Vision Res 46 (2006) 993-1001
14. Prisant O., Hoang-Xuan T., Proano C., et al. Vector summation of anterior and posterior corneal topographical astigmatism. J Cataract Refract Surg 28 (2002) 1636-1643
15. Seitz B., Langenbucher A., Torres F., et al. Changes of posterior corneal astigmatism and tilt after myopic laser in situ keratomileusis. Cornea 21 (2002) 441-446
16. Módis Jr. L., Langenbucher A., and Seitz B. Evaluation of normal corneas using the scanning-slit topography/pachymetry system. Cornea 23 (2004) 689-694
17. Konstantopoulos A., Hassain P., and Anderson D. Recent advances in ophthalmic anterior segment imaging: a new era for ophthalmic diagnosis?. Br J Ophthalmol 91 (2007) 551-557
18. Seitz B., Torres F., Langenbucher A., et al. Posterior corneal curvature changes after myopic laser in situ keratomileusis. Ophthalmology 108 (2001) 666-672
19. Giessler S., and Duncker G.I.W. Orbscan pachymetry after LASIK is not reliable. [letter]. J Refract Surg 17 (2001) 385-387
20. Cairns G., Ormonde S.E., Gray T., et al. Assessing the accuracy of Orbscan II post-LASIK: apparent keratectasia is paradoxically associated with anterior chamber depth reduction in successful procedures. Clin Experiment Ophthalmol 33 (2005) 147-152
21. Rabinowitz Y.S. Ectasia after laser in situ keratomileusis. Curr Opin Ophthalmol 17 (2006) 421-426
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 31 (2005) 1729-1735
23. Lackner B., Schmidinger G., and Skorpik C. Validity and repeatability of anterior chamber depth measurements with Pentacam and Orbscan. Optom Vis Sci 82 (2005) 858-861
24. Buehl W., Stojanac D., Sacu S., et al. Comparison of three methods of measuring corneal thickness and anterior chamber depth. Am J Ophthalmol 141 (2006) 7-12
25. Speicher L. Intra-ocular lens calculation after corneal refractive surgery. Curr Opin Ophthalmol 12 (2001) 17-29
26. Eydelman M.B., Drum B., Holladay J., et al. Standardized analyses of correction of astigmatism by laser systems that reshape the cornea. J Refract Surg 22 (2006) 81-95
27. Thibos L.N., and Horner D. Power vector analysis of the optical outcome of refractive surgery. J Cataract Refract Surg 27 (2001) 80-85
28. Wang L., Mooth M.A., and Koch D.D. Comparison of intraocular lens power calculation methods in eyes that have undergone LASIK. Ophthalmology 111 (2004) 1825-1831
29. Atchison D.A., Markwell E.L., Kasthurirangan S., et al. Age-related changes in optical and biometric characteristics of emmetropic eyes. J Vis 8 (2008) 29.1-20
30. Gudmundsdottir E., Jonasson F., Jonsson V., et al. "With the rule" astigmatism is not the rule in the elderly. Reykjavik Eye Study: a population based study of refraction and visual acuity in citizens of Reykjavik 50 years and older. Iceland-Japan Co-Working Study Groups. Acta Ophthalmol Scand 78 (2000) 642-646
31. Ferrer-Blasco T., González-Méijome J.M., and Montés-Micó R. Age-related changes in the human visual system and prevalence of refractive conditions in patients attending an eye clinic. J Cataract Refract Surg 34 (2008) 424-432
32. Sawada A., Tomidokoro A., Araie M., et al., Tajimi Study Group. Refractive errors in an elderly Japanese population: the Tajimi Study. Ophthalmology 115 (2008) 363-370
33. Novis C. Astigmatism and toric intraocular lenses. Curr Opin Ophthalmol 11 (2000) 47-50