Corneal Cross-Linking: Current USA Status: Report From the Cornea Society
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Univ Arizona, Dept Ophthalmol & Vis SciIssue Date
2018-10-01
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LIPPINCOTT WILLIAMS & WILKINSCitation
Belin, M. W., Lim, L., Rajpal, R. K., Hafezi, F., Gomes, J. A., & Cochener, B. (2018). Corneal Cross-Linking: Current USA StatusReport From the Cornea Society. Cornea, 37(10), 1218-1225.Journal
CORNEARights
Copyright © 2018 The Cornea Society. Published byWolters Kluwer Health, Inc.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
The initial published clinical report on riboflavin/ultraviolet A corneal cross-linking (CXL) for treatment of progressive keratoconus dates back to 2003. CXL has since then been widely used outside the United States for treatment of progressive keratoconus and post-laser in situ keratomileusis ectasia. The Food and Drug Administration (FDA) approved Avedro Inc.'s corneal cross-linking system (KXL) for treatment of patients with progressive keratoconus and post-laser in situ keratomileusis ectasia in April 2016. The procedure is not currently approved for stable keratoconus. There are 2 FDA-approved topical ophthalmic solutions for use in CXL. Riboflavin 5'-phosphate in 20% dextran ophthalmic solution 0.146% (Photrexa Viscous) and Riboflavin 5'-phosphate ophthalmic solution 0.146% (Photrexa) are intended for use with the KXL system. Photrexa Viscous is used in all CXL procedures, whereas Photrexa is indicated for use when the corneal stroma is thinner than 400 µm after completion of the Photrexa Viscous induction period. The FDA-approved procedure using the Dresden protocol (UV-A, 3 mW/cm for 30 min) induces cytologic and morphologic changes in the anterior 250 to 300 µm of the corneal stroma. It has been believed that a minimum thickness of 400 μm was necessary to protect the corneal endothelium from potential damage. The CXL procedure using the standard Dresden protocol is established as the gold standard for treatment of progressive keratoconus. CXL treatment is indicated for a list of conditions ranging from corneal ectasia to infectious keratitis. Newer protocols, treatment regimens, and expanded indications will require further refinements, investigations, and long-term studies.Note
12 month embargo; originally published 1 October 2018.ISSN
1536-4798PubMed ID
30067537Version
Final accepted manuscriptae974a485f413a2113503eed53cd6c53
10.1097/ICO.0000000000001707
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