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Cornea and External Eye Disease pp 55–82Cite as

Phototherapeutic Keratectomy in Corneal Dystrophies

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

Abstract

■ Avoid “aiming and shooting” at all corneal pathologies to avoid dissatisfaction and frustration

■ The best candidates for phototherapeutic keratectomy (PTK) are myopic eyes with diffuse, elevated lesions (“plus disease”)

■ Localized depressed (para-)central lesions (e.g., foreign body scars; “minus disease”) are bad candidates for PTK, especially in cases of contact lens intolerance

■ Remove as much of the diseased tissue mechanically with the blade/hockey knife

■ Remove as little as possible with the laser to save tissue and allow for repeat PTK

■ Use the laser predominantly for smoothing

■ Use “masking agents” repeatedly during one session to smooth the surface

■ Consider simultaneous refractive ablations, especially in cases of pre-existing hyperopia or after penetrating keratoplasty (PKP)

■ Take into account potential subsequent PKP (save peripheral Bowman’s layer for suture fixation)

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Author information

Authors and Affiliations

  1. Department of Ophthalmology, University of Saarland, Kirrbergerstrasse 1, Building 22, 66421, Homburg/Saar, Germany

    Berthold Seitz

  2. Department of Medical Physics, Henkestrasse 91, 91052, Erlangen, Germany

    Achim Langenbucher

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  1. Berthold Seitz
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  2. Achim Langenbucher
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Thomas Reinhard Frank Larkin

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Seitz, B., Langenbucher, A. (2008). Phototherapeutic Keratectomy in Corneal Dystrophies. In: Reinhard, T., Larkin, F. (eds) Cornea and External Eye Disease. Essentials in Ophthalmology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-33681-5_4

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  • DOI: https://doi.org/10.1007/978-3-540-33681-5_4

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-33680-8

  • Online ISBN: 978-3-540-33681-5

  • eBook Packages: MedicineMedicine (R0)

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