Efficacy of iontophoresis-assisted epithelium-on corneal cross-linking for keratoconus
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Xiu-Jun Peng. Department of Ophthalmology, Chinese PLA Navy General Hospital, 6 Fu-Cheng Rd, Haidian District, Beijing 100048, China. pxj1@vip.sina.com

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Supported by Beijing Municipal Science and Technology Commission (No.Z151100004015217).

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    Abstract:

    Corneal cross-linking (CXL) is a noninvasive therapeutic procedure for keratoconus that is aimed at improving corneal biomechanical properties by induction of covalent cross-links between stromal proteins. It is accomplished by ultraviolet A (UVA) radiation of the cornea, which is first saturated with photosensitizing riboflavin. It has been shown that standard epithelium-off CXL (S-CXL) is efficacious, and it has been recommended as the standard of care procedure for keratoconus. However, epithelial removal leads to pain, transient vision loss, and a higher risk of corneal infection. To avoid these disadvantages, transepithelial CXL was developed. Recently, iontophoresis has been adopted to increase riboflavin penetration through the epithelium. Several clinical observations have demonstrated the safety and efficacy of iontophoresis-assisted epithelium-on CXL (I-CXL) for keratoconus. This review aimed to provide a comprehensive summary of the published studies regarding I-CXL and a comparison between I-CXL and S-CXL. All articles used in this review were mainly retrieved from the PubMed database. Original articles and reviews were selected if they were related to the I-CXL technique or related to the comparison between I-CXL and S-CXL.

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Hong-Zhen Jia, Xiu-Jun Peng. Efficacy of iontophoresis-assisted epithelium-on corneal cross-linking for keratoconus. Int J Ophthalmol, 2018,11(4):687-694

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Publication History
  • Received:November 15,2017
  • Revised:February 07,2018
  • Adopted:
  • Online: April 10,2018
  • Published: