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PRK and Corneal Cross-Linking in the Management of Keratoconus

  • Arthur CummingsEmail author
Chapter

Abstract

Today it is widely accepted that corneal crosslinking stabilises the cornea in cases of keratoconus and kerectasia following corneal refractive surgery. Additionally, stopping eye rubbing is very important to achieve stability. But, CXL alone does not necessarily improve the visual acuity.

There are several methods to improve the visual acuity in keratoconus including photorefractive keratectomy (PRK). PRK can be performed prior to CXL, at the same time as CXL or after CXL has stabilised the cornea. PRK typically uses a topography-guided profile to attempt corneal regularisation but wavefront-guided ablation profiles are used too. Most PRK users correct the higher order aberrations primarily but there are some that attempt full refractive correction too. It is important to note that corneal stability remains the primary concern and therefore the preservation of corneal tissue is paramount.

Keywords

Photo-refractive keratectomy PRK Topography-guided Wavefront-guided Ablation profile Corneal stability Visual improvement 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Wellington Eye Clinic and Beacon HospitalDublinIreland

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