Ellipsoidal fitting of corneal topography data after arcuate keratotomies with compression sutures

Ophthalmic Surgery and Lasers

Volumn 29, Issue 9, 1998, Pages 738-748

  Langenbucher, Achim ^a,b   Seitz, Berthold ^a   Kus, Murat M ^a   Vilchis, Ernesto ^a   Küchle, Michael ^a  

^a UNIVERSITY OF ERLANGEN NUREMBERG   (Germany)

^b UNIVERSITY HOSPITAL ERLANGEN   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

ADULT; AGED; ARTICLE; ASTIGMATISM; CLINICAL ARTICLE; CORNEA CURVATURE; FEMALE; HUMAN; KERATOTOMY; MALE; MATHEMATICAL ANALYSIS; POSTOPERATIVE COMPLICATION; PRIORITY JOURNAL; SURGICAL TECHNIQUE; SUTURING METHOD; VISUAL ACUITY;

ADULT; AGED; AGED, 80 AND OVER; ASTIGMATISM; CORNEA; CORNEAL TOPOGRAPHY; CORNEAL TRANSPLANTATION; FEMALE; FOLLOW-UP STUDIES; HUMANS; KERATOTOMY, RADIAL; MALE; MIDDLE AGED; POSTOPERATIVE COMPLICATIONS; REOPERATION; RETROSPECTIVE STUDIES; SUTURE TECHNIQUES; VISUAL ACUITY;

EID: 0031711776     PISSN: 10823069     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (44)

1. Seitz B, Behrens A, Langenbucher A. Corneal topography. Curr Opin Ophthalmol. 1997;8:8-24.
2. Carroll JP. A method to describe corneal topography. Optom Vis Sci. 1994;71:259-264.
3. McDonnell PJ. Current applications of the corneal modeling system. Refract Corneal Surg. 1991;5: 424-429.
4. Maguire LJ, Bourne WM. Corneal topography of transverse keratotomies for astigmatism after penetrating keratoplasty. Am J Ophthalmol. 1989;107: 323-330.
5. Burek H, Douthwaite WA. Mathematical models of the general corneal surface. Ophthalmic Physiol Opt. 1993;13:68-72.
6. Tripoli NK, Ibrahim OS, Coggins JM. Quantitative and qualitative topography classification of clear penetrating keratoplasties. Invest Ophthalmol Vis Sci. 1990; 30(suppl.):480.
7. Bogan SJ, Waring GO, Ibrahim O, Drews C, Curtis L. Classification of normal corneal topography based on computer-assisted videokeratography. Arch Ophthalmol. 1990;108:945-949.
8. Judge D, Gordon L, Vander-Zwaag R, Wood TO. Refractive versus keratometric astigmatism post keratoplasty. Refract Corneal Surg. 1990;6:472-473.
9. Langenbucher A, Seitz B, Kus MM. Interpretation der Hornhauttopographie nach perforierender Keratoplastik mit Wellenfrontparametern-Vergleich zwischen nichtmechanischer Trepanation mittels Excimerlaser und Motortrepanation. Klin Monatsbl Augenheilkd. In press.
10. Seiler T, Wollensak J. Über die mathematische Darstellung des postoperativen regulären Hornhautastigmatismus. Klin Monatsbl Augenheilkd. 1993; 203:70-76.
11. Klein SA, Mandell RB. Shape and refractive powers in corneal topography. Invest Ophthalmol Vis Sci. 1995; 36:2096-2109.
12. Maloney RK, Bogan SJ, Waring GO. Determination of image-forming properties from corneal topography. Am J Ophthalmol. 1992;115:31-41.
13. Langenbucher A, Seitz B, Kus MM, Naumann GOH. Graft decentration in penetrating keratoplasty: excimer laser trephination versus motor trephination. Ophthalmic Surg Lasers. 1998;29:106-113.
14. Langenbucher A, Seitz B, Kus MM, Vilchis E, Naumann GOH. Regularität der Hornhauttopographie nach perforierender Keratoplastik-Vergleich zwischen nichtmechanischer (193nm excimer laser) und mechanischer Trepanation. Klin Monatsbl Augenheilkd. 1996;208:450-458.
15. Naumann GOH, Sautter H. Surgical procedures of the cornea. In: Blodi FC, Mackensen G, Neubauer H, eds. Surgical Ophthalmology 1. Berlin: Springer; 1991.
16. Naumann GOH. Corneal transplantation in anterior segment decreases: the Bowman lecture (number 56) part II. Eye. 1995;9:395-424.
17. Naumann GOH, Seitz B, Lang GK, Langenbucher A, Kus MM. Excimer-laser-193nm Trepanation bei der perforierenden Keratoplastik-Bericht über die ersten 70 Patienten. Klin Monatsbl Augenheilkd. 1993;203: 252-259.
18. Troutman RC. Astigmatic considerations in corneal graft. Ophthalmic Surg. 1979;10:21-26.
19. Krachmer JH, Frenzl RE. Surgical correction of high postkeratoplasty astigmatism: relaxation incisions vs wedge resection. Arch Ophthalmol. 1980;98: 1400-1402.
20. Seitz B, Naumann GOH. Limbus-parallel keratotomies and compression sutures in excessive astigmatism after penetrating keratoplasty. German J Ophthalmol. 1993;2:42-50.
21. Arffa RC. Results of graded relaxing incision technique for post-keratoplasty astigmatism. Ophthalmic Surg. 1988;19:624-628.
22. Fronterre A, Portesani GP. Relaxing incisions for post-keratoplasty astigmatism. Cornea. 1991;10:305-311.
23. Limberg MB, Dingeldein SA, Green MT, Klyce SD, Insler MS, Kaufman HE. Corneal compression sutures for the reduction of astigmatism after penetrating keratoplasty. Am J Ophthalmol. 1989;108:36-42.
24. Troutman RC, Swinger C. Relaxing incision for control of postoperative astigmatism after penetrating keratoplasty. Ophthalmic Surg. 1980;11:117-120.
25. Lindstrom RL, Lindquist TD. Surgical correction of postoperative astigmatism. Cornea. 1988;7:138-148.
26. Saragoussi JJ, Abenhaim A, Waked N, Koster HR, Pouliquen YJ. Results of transverse keratotomies for astigmatism after penetrating keratoplasty: a retrospective study of 48 consecutive cases. Refract Corneal Surg. 1992;8:33-38.
27. Vilchis E, Seitz B, Langenbucher A, Kuchle M, Kus MM, Naumann GOH. Limbusparallele Keratotomien mit Kompressionsnähten zur Behandlung des hohen Astigmatismus nach perforierender Keratoplastik: Eine vektoranalytische und topographische Studie. Klin Monatsbl Augenheilkd. 1997;211:152-159.
28. Holladay JT, Prager TC. Mean visual acuity. Am J Ophthalmol. 1991;111:372-374.
29. Dennis JD, Woods DJ. New computing environments. In: Wouk A, ed. Microcomputers in Large-scale Computing. New York: SIAM; 1987:116-122.
30. Roberts C. The accuracy of power maps to display curvature data in corneal topography systems. Invest Ophthalmol Vis Sci. 1994;35:3525-3532.
31. Dingeldein SA, Klyce SD, Wilson SE. Quantitative descriptors of corneal shape derived from computer-assisted analysis of videokeratographs. Refract Corneal Surg. 1989;5:372-378.
32. Wang J, Rice DA, Klyce SD. Analysis of effects of astigmatism and misalignment on corneal surface reconstruction from photokeratoscopic data. Refract Corneal Surg. 1991;7:129-140.
33. Wilson SE, Klyce SD. Quantitative descriptors of corneal topography. Arch Ophthalmol. 1991;109: 349-353.
34. Langenbucher A, Seitz B, Kus MM, Naumann GOH. Fourieranalyse als mathematisches Modell zur Auswertung und Darstellung von postoperativen Hornhauttopographiedaten nach nichtmechanischer perforierender Keratoplastik. Klin Monatsbl Augenheilkd. 1997;210:197-206.
35. Mandell RB, Helen R. Mathematical model of the corneal contour. Br J Physiol Opt. 1971;26:183-197.
36. Wang JW, Silva DE. Wavefront interpretation with Zernike polynomials. Appl Opt. 1980;19:1510-1518.
37. Schwiegerling J, Greivenkamp JE, Miller JM. Representation of videokeratoscopic height data with Zernike polynomials. J Opt Soc Am. 1995;12: 2105-2113.
38. Halstead MA, Barsky BA, Klein SA, Mandell RB. A spline surface algorithm for reconstruction of corneal topography from a videokeratoscopic reflection pattern. Optom Vis Sci. 1995;72:821-827.
39. Friedman NE, Zadnik K, Mutti DO, Fusaro RE. Quantifying corneal toricity from videokeratography with Fourier analysis. J Refract Corneal Surg. 1996; 12:108-113.
40. Hjortdal JO, Erdmann L, Bek T. Fourier-analysis of photokeratographic data: a tool for separation of spherical, regular astigmatism and irregular astigmatic corneal power components. Ophthalmic Physiol Opt. 1995;15:171-185.
41. Bates WH. A suggestion of an operation to correct astigmatism. Arch Ophthalmol. 1994;23:9-13.
42. Howland HC, Buettner J, Applegate RA. Computation of the shapes of normal corneas and their monochromatic aberrations from videokeratoscopic measurements. In: Vision Science and Its Applications, vol. 2. Washington, DC: Optical Society of America; 1994: 54-57.
43. Kiely PM, Smith G, Carney LG. The mean shape of the human cornea. Optica Acta. 1982;29:1027-1040.
44. Eghbali F, Young KK, Maloney RK. Topographic determination of corneal asphericity and its lack of effect on the refractive outcome of radial keratotomy. Am J Ophthalmol. 1995;119:275-280.