Skip to main content
Log in

Trans-epithelial corneal collagen cross-linking with iontophoresis for progressive keratoconus

  • Original Paper
  • Published:
International Ophthalmology Aims and scope Submit manuscript

Abstract

Purpose

To evaluate the efficacy of trans-epithelial corneal collagen cross-linking (CXL) with Iontophoresis among patients with progressive keratoconus.

Methods

It is a prospective interventional study, which is based on 41 eyes of 23 patients, suffering from progressive keratoconus and treated with trans-epithelial corneal cross-linking, using iontophoresis with ETDA and trometamol-enriched riboflavin 5 phosphates 0.1% hypotonic solution (Ricrolin+, Soot Italia SpA, Italy).

Results

The mean of uncorrected distance visual acuity and best corrected distant visual acuity was improved at 6 months with statistically significant differences from baseline (p < 0.05). There was no statistically significant difference in keratometric values, including K1, K2, Km, topographic astigmatism, and central corneal thickness. Patients, who had completed 1 year (21 eyes of 12 patients) of the treatment, showed similar results.

Conclusion

The data indicated that corneal collagens cross-linking with iontophoresis using Ricroli+ may be an effective method in halting the progression of keratoconus without the side effects of epithelial removal, which may be encountered in the standard epi-off CXL procedure.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Krachmer JH, Feder RS, Belin MW (1984) Keratoconus and related noninflammatory corneal thinning disorders. Surv Ophthalmol 28:293–322. https://doi.org/10.1016/0039-6257(84)90094-8

    Article  CAS  PubMed  Google Scholar 

  2. Tuft SJ, Moodaley LC, Gregory WM, Davison CR, Buckley RJ (1994) Prognostic factors for the progression of keratoconus. Ophthalmology 101:439–447. https://doi.org/10.1016/s0161-6420(94)31313-3

    Article  CAS  PubMed  Google Scholar 

  3. Spoerl E, Huhle M, Seiler T (1998) Induction of cross-links in corneal tissue. Exp Eye Res 66:97–103. https://doi.org/10.1006/exer.1997.0410

    Article  CAS  PubMed  Google Scholar 

  4. Wollensak G, Spoerl E, Seiler T (2003) Riboflavin/ultraviolet-A–induced collagen crosslinking for the treatment of keratoconus. Am J Ophthalmol 135:620–627. https://doi.org/10.1016/s0002-9394(02)02220-1

    Article  CAS  PubMed  Google Scholar 

  5. Kampik D, Koch M, Kampik K, Geerling G (2011) Corneal riboflavin/UV-A collagen cross-linking (CXL) in keratoconus: two-year results. Klin Monatsblatter Augenheilkd 228:525–530. https://doi.org/10.1055/s-0031-1273403

    Article  CAS  Google Scholar 

  6. Raiskup-Wolf F, Hoyer A, Spoerl E, Pillunat LE (2008) Collagen crosslinking with riboflavin and ultraviolet-A light in keratoconus: long-term results. J Cataract Refract Surg 34:796–801. https://doi.org/10.1016/j.jcrs.2007.12.039

    Article  PubMed  Google Scholar 

  7. Saffarian L, Khakshoor H, Zarei-Ghanavati M, Esmaily H (2010) Corneal crosslinking for keratoconus in Iranian patients: outcomes at 1 year following treatment. Middle East Afr J Ophthalmol 17:365. https://doi.org/10.4103/0974-9233.71600

    Article  PubMed  PubMed Central  Google Scholar 

  8. Koller T, Pajic B, Vinciguerra P, Seiler T (2011) Flattening of the cornea after collagen crosslinking for keratoconus. J Cataract Refract Surg 37:1488–1492. https://doi.org/10.1016/j.jcrs.2011.03.041

    Article  PubMed  Google Scholar 

  9. Asri D, Touboul D, Fournie P, Malet F, Garra C, Gallois A, Malecaze F, Colin J (2011) Corneal collagen crosslinking in progressive keratoconus: multicenter results from the French National Reference Center for Keratoconus. J Cataract Refract Surg 37:2137–2143. https://doi.org/10.1016/j.jcrs.2011.08.026

    Article  PubMed  Google Scholar 

  10. Derakhshan A, Shandiz JH, Ahadi M, Daneshvar R, Esmaily H (2011) Short-term outcomes of collagen crosslinking for early keratoconus. J Ophthal Vis Res 6:155

    Google Scholar 

  11. Viswanathan D, Males J (2013) Prospective longitudinal study of corneal collagen cross-linking in progressive keratoconus. Clin Exp Ophthalmol 41:531–536. https://doi.org/10.1111/ceo.12035

    Article  PubMed  Google Scholar 

  12. Hersh PS, Greenstein SA, Fry KL (2011) Corneal collagen crosslinking for keratoconus and corneal ectasia: one-year results. J Cataract Refract Surg 37:149–160. https://doi.org/10.1016/j.jcrs.2010.07.030

    Article  PubMed  Google Scholar 

  13. Brooks NO, Greenstein S, Fry K, Hersh PS (2012) Patient subjective visual function after corneal collagen crosslinking for keratoconus and corneal ectasia. J Cataract Refract Surg 38:615–619. https://doi.org/10.1016/j.jcrs.2011.11.029

    Article  PubMed  Google Scholar 

  14. Greenstein SA, Fry KL, Hersh MJ, Hersh PS (2012) Higher-order aberrations after corneal collagen crosslinking for keratoconus and corneal ectasia. J Cataract Refract Surg 38:292–302. https://doi.org/10.1016/j.jcrs.2011.08.041

    Article  PubMed  Google Scholar 

  15. Greenstein SA, Fry KL, Hersh PS (2011) Corneal topography indices after corneal collagen crosslinking for keratoconus and corneal ectasia: one-year results. J Cataract Refract Surg 37:1282–1290. https://doi.org/10.1016/j.jcrs.2011.01.029

    Article  PubMed  Google Scholar 

  16. Vinciguerra P, Romano V, Rosetta P, Legrottaglie EF, Kubrak-Kisza M, Azzolini C, Vinciguerra R (2016) Iontophoresis-assisted corneal collagen cross-linking with epithelial debridement: preliminary results. Biomed Res Int. https://doi.org/10.1155/2016/3720517

    Article  PubMed  PubMed Central  Google Scholar 

  17. Zhang X, Sun L, Chen Y, Li M, Tian M, Zhou X (2016) One-year outcomes of pachymetry and epithelium thicknesses after accelerated (45 mW/cm2) Transepithelial corneal collagen cross-linking for keratoconus patients. Sci Rep. https://doi.org/10.1038/srep32692

    Article  PubMed  PubMed Central  Google Scholar 

  18. Arleta W (2018) Corneal cross-linking procedure in progressive keratoconus treatment. Biomed J Sci Tech Res 2(3). BJSTR.MS.ID.000754. https://doi.org/10.26717/bjstr.2018.02.000754

  19. Sporl E, Huhle M, Kasper M, Seiler T (1997) Artificial stiffening of the cornea by induction of intrastromal cross-links. Der Ophthalmol 94:902–906. https://doi.org/10.1007/s003470050219

    Article  CAS  Google Scholar 

  20. Caporossi A, Baiocchi S, Mazzotta C, Traversi C, Caporossi T (2006) Parasurgical therapy for keratoconus by riboflavin–ultraviolet type A rays induced cross-linking of corneal collagen: preliminary refractive results in an Italian study. J Cataract Refract Surg 32:837–845. https://doi.org/10.1016/j.jcrs.2006.01.091

    Article  PubMed  Google Scholar 

  21. Grewal DS, Brar GS, Jain R, Sood V, Singla M, Grewal SP (2009) Corneal collagen crosslinking using riboflavin and ultraviolet-A light for keratoconus: one-year analysis using Scheimpflug imaging. J Cataract Refract Surg 35:425–432. https://doi.org/10.1016/j.jcrs.2008.11.046

    Article  PubMed  Google Scholar 

  22. Zamora KV, Males JJ (2009) Polymicrobial keratitis after a collagen cross-linking procedure with postoperative use of a contact lens: a case report. Cornea 28:474–476. https://doi.org/10.1097/ico.0b013e31818d381a

    Article  PubMed  Google Scholar 

  23. Mazzotta C, Balestrazzi A, Baiocchi S, Traversi C, Caporossi A (2007) Stromal haze after combined riboflavin-UVA corneal collagen cross-linking in keratoconus: in vivo confocal microscopic evaluation. Clin Exp Ophthalmol 35:580–582. https://doi.org/10.1111/j.1442-9071.2007.01536.x

    Article  PubMed  Google Scholar 

  24. Eberwein P, Auw-Hadrich C, Birnbaum F, Maier PC, Reinhard T (2008) Corneal melting after cross-linking and deep lamellar keratoplasty in a keratoconus patient. Klin Monatsblatter Augenheilkd 225:96–98

    Article  CAS  Google Scholar 

  25. Shalchi Z, Wang X, Nanavaty MA (2015) Safety and efficacy of epithelium removal and transepithelial corneal collagen crosslinking for keratoconus. Eye 29:15. https://doi.org/10.1038/eye.2014.230

    Article  CAS  PubMed  Google Scholar 

  26. Bottos KM, Schor P, Dreyfuss JL, Nader HB, Chamon W (2011) Effect of corneal epithelium on ultraviolet-A and riboflavin absorption. Arq Bras Oftalmol 74:348–351. https://doi.org/10.1590/s0004-27492011000500008

    Article  PubMed  Google Scholar 

  27. Bikbova G, Bikbov M (2014) Transepithelial corneal collagen cross-linking by iontophoresis of riboflavin. Acta Ophthalmol. https://doi.org/10.1111/aos.12235

    Article  PubMed  Google Scholar 

  28. Vinciguerra R, Legrottaglie EF, Rosetta P, Azzolini C, Vinciguerra P (2014) Iontophoresis corneal collagen cross linking for progressive keratoconus. Invest Ophthalmol Vis Sci 55:4212

    Google Scholar 

  29. Li N, Fan Z, Peng X, Pang X, Tian C (2016) Clinical observation of transepithelial corneal collagen cross-linking by iontophoresis of riboflavin in treatment of keratoconus. Eye Sci 29:160–164

    CAS  Google Scholar 

  30. Lombardo M, Serrao S, Raffa P, Rosati M, Lombardo G (2016) Novel technique of transepithelial corneal cross-linking using iontophoresis in progressive keratoconus. J Ophthalmol. https://doi.org/10.1155/2016/7472542

    Article  PubMed  PubMed Central  Google Scholar 

  31. Vinciguerra P, Romano V, Rosetta P, Legrottaglie EF, Piscopo R, Fabiani C, Azzolini C, Vinciguerra R (2016) Transepithelial iontophoresis versus standard corneal collagen cross-linking: 1-year results of a prospective clinical study. J Refract Surg 32:672–678. https://doi.org/10.3928/1081597x-20160629-02

    Article  PubMed  Google Scholar 

  32. Jia H-Z, Pang X, Fan Z-J, Peng X-J (2017) Iontophoresis-assisted versus standard corneal crosslinking for progressive keratoconus. Ann Eye Sci 2:9. https://doi.org/10.21037/aes.2017.01.01

    Article  Google Scholar 

  33. Bikbova G, Bikbov M (2016) Standard corneal collagen crosslinking versus transepithelial iontophoresis-assisted corneal crosslinking, 24 months follow-up: randomized control trial. Acta Ophthalmol 94(7):e600–e606. https://doi.org/10.1111/aos.13032

    Article  CAS  PubMed  PubMed Central  Google Scholar 

Download references

Acknowledgements

The authors are very thankful to all the associated personnel in any reference that contributed in/for the purpose of this research. This study was conducted at Al-Taif eye center, Amman, Jordan.

Author information

Authors and Affiliations

Authors

Contributions

The authors have analyzed the effectiveness of trans-epithelial corneal collagen cross-linking with Iontophoresis for treating progressive keratoconus.

Corresponding author

Correspondence to Mohammed Ali Abu Ameerh.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Informed consent

All the patients signed an informed written consent, and the study adhered to the tenets of the Declaration of Helsinki.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Ameerh, M.A.A., Bdour, M.D.A., Al-Till, M. et al. Trans-epithelial corneal collagen cross-linking with iontophoresis for progressive keratoconus. Int Ophthalmol 39, 1089–1095 (2019). https://doi.org/10.1007/s10792-018-0920-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10792-018-0920-4

Keywords

Navigation