Klin Monbl Augenheilkd 2019; 236(12): 1435-1438
DOI: 10.1055/a-0659-2549
Klinische Studie
Georg Thieme Verlag KG Stuttgart · New York

Klinische Ergebnisse nach Keraring-Implantation zur Behandlung von Keratokonuspatienten mit sehr dünnen Hornhäuten

Clinical Outcomes after Keraring Implantation for Keratoconus Management in Thin Corneas
Ivo Guber
1   Universitätsaugenklinik Genf, Genf, Schweiz
,
Zisis Gatzioufas
2   Department of Ophthalmology, Geneva University Hospital, Geneva, Switzerland
,
David Goldblum
3   Universitätsaugenklinik Basel, Universitätsspital Basel, Augenklinik, Basel, Schweiz
,
Mohamed Elalfy
4   Corneo-Plastic Unit, Queen Victoria Hospital NHS Foundation Trust, East Grinstead, United Kingdom of Great Britain and Northern Ireland
,
Samer Hamada
4   Corneo-Plastic Unit, Queen Victoria Hospital NHS Foundation Trust, East Grinstead, United Kingdom of Great Britain and Northern Ireland
,
Damian Lake
4   Corneo-Plastic Unit, Queen Victoria Hospital NHS Foundation Trust, East Grinstead, United Kingdom of Great Britain and Northern Ireland
› Author Affiliations
Further Information

Publication History

eingereicht 23 January 2018

akzeptiert 11 July 2018

Publication Date:
14 September 2018 (online)

Zusammenfassung

Hintergrund Ziel der Studie war es, die klinischen Ergebnisse nach Keraring-Implantation bei Patienten mit Keratokonus mit sehr dünnen Hornhäuten zu evaluieren.

Patienten und Methoden Zehn Augen von 10 Keratokonuspatienten, bei denen eine femtosekundenlaserassistierte Ringimplantation durchgeführt worden war, wurden in diese retrospektive Studie eingeschlossen. Der unkorrigierte Visus, der korrigierte Visus, die Keratometriewerte, die zentrale Hornhautdicke und die dünnste Hornhautstelle wurden präoperativ und 6 Monate nach Keraring-Implantation ausgewertet.

Ergebnisse Der unkorrigierte Visus, der korrigierte Visus und die Keratometriewerte verbesserten sich 6 Monate nach der Implantation.

Schlussfolgerung Unsere Daten zeigen eine deutliche Verbesserung der Keratometriewerte und der Sehschärfe 6 Monate nach Keraring-Implantation bei Patienten mit Keratokonus und dünner Hornhaut.

Abstract

Background The aim of our study was to evaluate the clinical outcomes after Keraring implantation for keratoconus in patients with thin corneas.

Patients and Methods Ten eyes from 10 patients with keratoconus, who underwent femtosecond laser-assisted Keraring implantation for keratoconus, were included in this retrospective study. Uncorrected visual acuity (UCVA), corrected visual acuity (CDVA), keratometric readings, central corneal thickness and thinnest corneal pachymetry have been evaluated preoperatively and 6 months after the Keraring implantation.

Results UCVA, BCVA and keratometric readings improved at 6 months postoperatively.

Conclusions Our data showed significant keratometric amelioration and visual improvement after Keraring implantation for keratoconus in patients with thin corneas at 6 months postoperatively.

 
  • Literatur

  • 1 Silvestrini TA, Mathis ML, Loomas BE. et al. A geometric model to predict the change in corneal curvature from the intrastromal corneal ring (ICR). Invest Ophthalmol Vis Sci 1994; 35: 2023
  • 2 Coskunseven E, Kymionis GD, Tsiklis NS. et al. One-year results of intrastromal corneal ring segment implantation (KeraRing) using femtosecondlaser in patients with keratoconus. Am J Ophthalmol 2008; 145: 775-779
  • 3 Giacomin NT, Mello GR, Medeiros CS. et al. Intracorneal Ring Segments Implantation for Corneal Ectasia. J Refract Surg 2016; 32: 829-839
  • 4 Kaya V, Utine CA, Karakus SH. et al. Refractive and visual outcomes after Intacs vs. ferrara intrastromal corneal ring segment implantation for keratoconus: a comparative study. J Refract Surg 2011; 27: 907-912
  • 5 Piñero DP, Alio JL. Intracorneal ring segments in ectatic corneal disease – a review. Clin Experiment Ophthalmol 2010; 38: 154-167
  • 6 Vega-Estrada A, Alio JL, Brenner LF. et al. Outcome analysis of intracorneal ring segments for the treatment of keratoconus based on visual, refractive, and aberrometric impairment. Am J Ophthalmol 2013; 155: 575-584
  • 7 Coskunseven E, Kymionis GD, Tsiklis NS. et al. Complications of intrastromal corneal ring segment implantation using a femtosecond laser for channel creation: a survey of 850 eyes with keratoconus. Acta Ophthalmol 2011; 89: 54-57
  • 8 Vega-Estrada A, Alio JL. The use of intracorneal ring segments in keratoconus. Eye Vis (Lond) 2016; 3: 8
  • 9 Burris TE, Baker PC, Ayer CT. et al. Flattening of central corneal curvature with intrastromal corneal rings of increasing thickness: an eye-bank eye study. J Cataract Refract Surg 1993; 19: 182-187
  • 10 Alió JL, Shabayek MH, Artola A. Intracorneal ring segments for keratoconus correction: long-term follow-up. J Cataract Refract Surg 2006; 32: 978-985
  • 11 Vega-Estrada A, Alió JL, Brenner LF. et al. Outcomes of intrastromal corneal ring segments for treatment of keratoconus: five-year follow-up analysis. J Cataract Refract Surg 2013; 39: 1234-1240
  • 12 Carrasquillo KG, Rand J, Talamo JH. Intacs for keratoconus and post-LASIK ectasia: mechanical versus femtosecond laser-assisted channel creation. Cornea 2007; 26: 956-962
  • 13 Shetty R, Kurian M, Anand D. et al. Intacs in advanced keratoconus. Cornea 2008; 27: 1022-1029
  • 14 Alió JL, Shabayek MH, Belda JI. et al. Analysis of results related to good and bad outcomes of Intacs implantation for keratoconus correction. J Cataract Refract Surg 2006; 32: 756-761
  • 15 Zare MA, Hashemi H, Salari MR. Intracorneal ring segment implantation for the management of keratoconus: safety and efficacy. J Cataract Refract Surg 2007; 33: 1886-1891
  • 16 Peña-García P, Alió JL, Vega-Estrada A. et al. Internal, corneal, and refractive astigmatism as prognostic factors for intrastromal corneal ring segment implantation in mild to moderate keratoconus. J Cataract Refract Surg 2014; 40: 1633-1644
  • 17 de Sanctis U, Missolungi A, Mutani B. et al. Reproducibility and repeatability of central corneal thickness measurement in keratoconus using the rotating Scheimpflug camera and ultrasound pachymetry. Am J Ophthalmol 2007; 144: 712-718
  • 18 Ozertürk Y, Sari ES, Kubaloglu A. et al. Comparison of deep anterior lamellar keratoplasty and intrastromal corneal ring segment implantation in advanced keratoconus. J Cataract Refract Surg 2012; 38: 324-332