International Journal of Keratoconus and Ectatic Corneal Diseases

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Volume  10 (2023)
Volume  9 (2020)
Volume  8 (2019)
Volume  7 (2018)
Volume  6 (2017)
Volume  5 (2016)
Volume  4 (2015)
Volume  3 (2014)
Volume  2 (2013)
Volume  1 (2012)
Related articles

VOLUME 9 , ISSUE 1 ( January-June, 2020 ) > List of Articles

RESEARCH ARTICLE

Femtosecond Circular Keratotomy in Stage I and II Keratoconus

Jörg H Krumeich, Nino Hirnschall, Florian Laufer

Keywords : Circular corneal cut, Circular keratotomy, Keratoconus

Citation Information : Krumeich JH, Hirnschall N, Laufer F. Femtosecond Circular Keratotomy in Stage I and II Keratoconus. Int J Kerat Ect Cor Dis 2020; 9 (1):7-10.

DOI: 10.5005/jp-journals-10025-1188

License: CC BY-NC 4.0

Published Online: 13-04-2022

Copyright Statement:  Copyright © 2020; The Author(s).


Abstract

Aim and objective: Authors present clinical results of circular keratotomy (CTK) performed with a femtosecond laser. The 1–3 years results for two separate groups are the first results of a new surgical approach to stop progression of keratoconus. Materials and methods: A circular intraparenchymal central 7-mm cut was made with a Ziemer Z6, Z8 femtosecond laser without affecting the epithelium, Bowman layer, Descemet layer and endothelium. Patients with stage I and II keratoconus according to the Krumeich classification were treated. Results: In total 147 eyes were treated. Statistical evaluation showed stable radii in 87.8% (n = 48) of the eyes treated. Astigmatism was stable in 79.6% (n = 69). BCVA remained stable or improved in 75.9% (n = 29). Conclusion: CKT is a procedure that reliably works in keratoconus stage I and II. Advantages are the ease of the performance using the femtosecond laser and the absence of any severe complication in the eyes treated. The eye remained closed with the consequence that no contact existed from the external world into the cornea.

HTML PDF Share
  1. Colin J, Cochener B, Savary G, et al. Correcting keratoconus with intracorneal rings. J Cataract Refract Surg 2000; 26(8):1117–1122.
  2. Wollensak G, Spoerl E, Seiler T. Riboflavin/ultraviolet-ainduced collagen crosslinking for the treatment of keratoconus. Am J Ophthalmol 2003; 135(5):620–627.
  3. Krumeich, JH, Brand Saberi B, Chankiewitz V, et al. and Guthoff R. (2014). Induction of neoplasia after deep anterior lamellar keratoplasty in a CXL-treated cornea. Cornea, 33(3): 313–316.
  4. Krumeich JH, Kezirian GM. Circular keratotomy to reduce astigmatism and improve vision in stage I and II keratoconus. J Refract Surg 2009;25(4):357–365.
  5. Krumeich JH, Hirnschall N. Effect of Circular Keratotomy on Progression of Keratoconus. Int J Kerat Ect Cor Dis 2016; 5(2):57–62.
  6. Alio JL, Piñero DP, Daxer A. Clinical outcomes after complete ring implantation in corneal ectasia using the femtosecond technology: a pilot study. Ophthalmology 2011;118(7): 1282–1290.
  7. Krumeich JH, Hirnschall N, Breyer D, Laufer F. Femto Circular Keratotomy to Halt the Progression of Keratoconus I and II. Int J Kerat Ect Cor Dis 016;5(3):109–113.
  8. Wilson SL, El Haj AJ, Yang Y. Control of scar tissue formation in the cornea: strategies in clinical and corneal tissue engineering. Journal of functional biomaterials, 3(3): 642–687.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.