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Excimer Laser Ablation in Keratoconus Treatment: Sequential High Definition Wavefront-Guided PRK After CXL

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Keratoconus

Part of the book series: Essentials in Ophthalmology ((ESSENTIALS))

Abstract

Refractive surgical correction of ametropia in patients with keratoconus remains a challenge. In patients with mild to moderate keratoconus, combined photorefractive keratectomy (PRK) and collagen cross-linking (CXL) proved to be a safe and effective alternative to correct minor refractive error, stabilizing the remaining stromal bed and avoiding progression of the ectatic disease. Wavefront-guided refractive correction seems to be safe and effective in restoring visual function in aberrated eyes, owing to its unique ability to correct the aberrations that are responsible for the image quality degradation, in addition to its precise ablation placement on the corneal surface when combined with iris registration and pupil centroid shift compensation. Besides, the sequential protocol is, in fact, making the best use of the stable cornea provided by previous CXL.

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Compliance with Ethical Requirements

Mohamed Shafik Shaheen and Ahmed Shalaby declare that they have no conflict of interest.

All procedures followed were in accordance with the ethical standards of the responsible committe on human experimentation (institutional and national and with the Helsinki Declaration of 1975, as revised in 2000. Informed consent was obtained from all patients for being included in the study.

No animal studies were performed by the authors for this chapter.

Financial disclosure: The studies by the authors included in this chapter were supported in part by an unrestricted educational grant from Abbott Medical Optics Inc.

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Authors and Affiliations

  1. Department of Ophthalmology, University of Alexandria, Egypt, 27, Ibrahimia, Alexandria, 21321, Egypt

    Mohamed Shafik Shaheen M.D., Ph.D.

  2. Department of Ophthalmology, University of Alexandria Main Hospitals, Alexandria, Egypt

    Ahmed Shalaby M.D.

Authors
  1. Mohamed Shafik Shaheen M.D., Ph.D.
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  2. Ahmed Shalaby M.D.
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Corresponding author

Correspondence to Mohamed Shafik Shaheen M.D., Ph.D. .

Editor information

Editors and Affiliations

  1. Keratoconus Unit Department of Refractive Surgery, Vissum Alicante, Alicante, Spain

    Jorge L. Alió

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Shafik Shaheen, M., Shalaby, A. (2017). Excimer Laser Ablation in Keratoconus Treatment: Sequential High Definition Wavefront-Guided PRK After CXL. In: Alió, J. (eds) Keratoconus. Essentials in Ophthalmology. Springer, Cham. https://doi.org/10.1007/978-3-319-43881-8_26

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  • DOI: https://doi.org/10.1007/978-3-319-43881-8_26

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-43879-5

  • Online ISBN: 978-3-319-43881-8

  • eBook Packages: MedicineMedicine (R0)

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