Display options
Cite
Schallhorn SC, Venter JA, Hannan SJ, et al. Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism. Clin Ophthalmol. 2015;9:1291-8doi: 10.2147/OPTH.S87887.
Schallhorn, S. C., Venter, J. A., Hannan, S. J., & Hettinger, K. A. (2015). Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism. Clinical ophthalmology (Auckland, N.Z.), 91291-8. https://doi.org/10.2147/OPTH.S87887
Schallhorn, Steven C, et al. "Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism." Clinical ophthalmology (Auckland, N.Z.) vol. 9 (2015): 1291-8. doi: https://doi.org/10.2147/OPTH.S87887
Schallhorn SC, Venter JA, Hannan SJ, Hettinger KA. Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism. Clin Ophthalmol. 2015 Jul 13;9:1291-8. doi: 10.2147/OPTH.S87887. eCollection 2015. PMID: 26203219; PMCID: PMC4508064.
Copy Download .nbib Format: NLM
Share it on

Clin Ophthalmol. 2015 Jul 13;9:1291-8. doi: 10.2147/OPTH.S87887. eCollection 2015.

Clinical outcomes of wavefront-guided laser in situ keratomileusis to treat moderate-to-high astigmatism.

Clinical ophthalmology (Auckland, N.Z.)

Steven C Schallhorn, Jan A Venter, Stephen J Hannan, Keith A Hettinger

Affiliations

  1. University of California, San Francisco, CA, USA ; Optical Express, Glasgow, UK.
  2. Optical Express, Glasgow, UK.

PMID: 26203219 PMCID: PMC4508064 DOI: 10.2147/OPTH.S87887

Abstract

PURPOSE: The purpose of this study was to evaluate the refractive and visual outcomes of wavefront-guided laser in situ keratomileusis (LASIK) in eyes with myopic astigmatism and cylindrical component ≥2.0 diopter (D).

METHODS: In this retrospective study, 611 eyes that underwent LASIK for simple or compound myopic astigmatism were analyzed. Preoperative refractive cylinder ranged from -2.00 D to -6.00 D (mean -2.76±0.81 D), and the sphere was between 0.00 D and -9.75 D (mean -2.79±2.32 D). Predictability, visual outcomes, and vector analysis of changes in refractive astigmatism were evaluated.

RESULTS: At 3 months after LASIK, 83.8% of eyes had uncorrected distance visual acuity of 20/20 or better, 90.3% had manifest spherical equivalent within ±0.50 D, and 79.1% had residual refractive cylinder within ±0.50 D of intended correction. The mean correction ratio for refractive cylinder was 0.92±0.14, the mean error of angle was -0.45°±2.99°, and the mean error vector was 0.37±0.38 D. A statistically significant correlation was found between the error of magnitude (arithmetic difference in the magnitudes between surgically induced refractive correction and intended refractive correction) and the intended refractive correction (r=0.26, P<0.01).

CONCLUSION: Wavefront-guided LASIK for the correction of myopic astigmatism is safe, effective, and predictable.

Keywords: Hartmann–Shack aberrometer; myopic astigmatism; wavefront-guided LASIK

References

  1. J Cataract Refract Surg. 2004 Jan;30(1):17-25 - PubMed
  2. Cornea. 2012 Nov;31 Suppl 1:S9-19 - PubMed
  3. J Refract Corneal Surg. 1994 Nov-Dec;10(6):615-20 - PubMed
  4. J Cataract Refract Surg. 2010 Mar;36(3):431-6 - PubMed
  5. J Cataract Refract Surg. 2004 Mar;30(3):633-8 - PubMed
  6. J Refract Surg. 2014 Sep;30(9):610-5 - PubMed
  7. J Refract Surg. 2013 Dec;29(12):824-31 - PubMed
  8. J Cataract Refract Surg. 2009 Oct;35(10):1789-98 - PubMed
  9. Br J Ophthalmol. 2014 Jul;98(7):857-61 - PubMed
  10. J Refract Surg. 2005 Nov-Dec;21(6):S772-4 - PubMed
  11. J Cataract Refract Surg. 2009 Mar;35(3):433-7 - PubMed
  12. Am J Ophthalmol. 2002 Apr;133(4):561-2 - PubMed
  13. J Cataract Refract Surg. 2013 Jan;39(1):28-35 - PubMed
  14. J Cataract Refract Surg. 1995 Jul;21(4):402-3 - PubMed
  15. J Cataract Refract Surg. 2003 Feb;29(2):257-63 - PubMed
  16. J Refract Surg. 2009 Jul;25(7 Suppl):S651-4 - PubMed
  17. J Cataract Refract Surg. 2008 Dec;34(12):2057-62 - PubMed
  18. J Refract Surg. 2006 Jan-Feb;22(1):81-95 - PubMed
  19. J Cataract Refract Surg. 2012 Aug;38(8):1408-13 - PubMed
  20. J Cataract Refract Surg. 2012 Apr;38(4):574-81 - PubMed
  21. J Cataract Refract Surg. 2008 Feb;34(2):215-21 - PubMed
  22. J Refract Surg. 2009 Mar;25(3):273-6 - PubMed
  23. J Cataract Refract Surg. 2011 Oct;37(10 ):1751-5 - PubMed
  24. J Cataract Refract Surg. 2013 Jan;39(1):74-80 - PubMed
  25. J Refract Surg. 2014 Jan;30(1):14-21 - PubMed
  26. IEEE Trans Biomed Eng. 2005 Dec;52(12):2032-40 - PubMed

Publication Types