International Journal of Keratoconus and Ectatic Corneal Diseases

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VOLUME 6 , ISSUE 2 ( July-December, 2017 ) > List of Articles

ORIGINAL ARTICLE

Intrastromal Corneal Ring Segments in Children with Keratoconus

Paulo Ferrara, Leonardo Torquetti, Guilherme Ferrara

Citation Information : Ferrara P, Torquetti L, Ferrara G. Intrastromal Corneal Ring Segments in Children with Keratoconus. Int J Kerat Ect Cor Dis 2017; 6 (2):45-48.

DOI: 10.5005/jp-journals-10025-1142

License: CC BY 3.0

Published Online: 01-09-2017

Copyright Statement:  Copyright © 2017; The Author(s).


Abstract

Purpose

To evaluate the long-term follow-up of Ferrara intrastromal corneal ring segments (ICRSs) (Ferrara Ophthalmics, Belo Horizonte, Brazil) implantation for the management of keratoconus in children.

Study design

Paulo Ferrara Eye Clinic, Belo Horizonte, Minas Gerais, Brazil.

Materials and methods

A total of 58 eyes of 37 children with keratoconus were included. One or two ring segments were inserted into the cornea, embracing the keratoconus area. Statistical analysis included preoperative and postoperative uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), asphericity, pachymetry, and keratometry.

Results

Ferrara ICRS implantation significantly improved the mean UDVA and CDVA. Corneal tomography (Pentacam®) showed corneal flattening in all eyes implanted with the Ferrara ring. The mean K decreased, and the corneal asphericity and pachymetry increased in all cases.

Conclusion

The Ferrara ICRS improved all parameters after 2 years of implantation in children with keratoconus. There was significant corneal flattening after ring implantation with improvement of the UDVA and the CDVA. All studied parameters remained stable over time.

How to cite this article

Ferrara G, Ferrara P, Torquetti L. Intrastromal Corneal Ring Segments in Children with Keratoconus. Int J Kerat Ect Cor Dis 2017;6(2):45-48.

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  1. Implantation of Intacs and a refractive intraocular lens to correct keratoconus. J Cataract Refract Surg 2003 Apr;29(4):832-834.
  2. Long-term follow-up of Intacs from a single center. J Cataract Refract Surg 2001 Sep;27(9):1456-1468.
  3. Correcting keratoconus with intracorneal rings. J Cataract Refract Surg 2000 Aug;26(8):1117-1122.
  4. Ferrara intrastromal corneal rings for the correction of keratoconus. J Cataract Refract Surg 2002 Nov;28(11):1947-1951.
  5. INTACS inserts for treating keratoconus; one-year results. Ophthalmology 2001 Aug;108(8):1409-1414.
  6. Management of keratoconus with Intacs. Am J Ophthalmol 2003 Jan;135(1):64-70.
  7. One-year results of the intrastromal corneal ring in nonfunctional human eyes. Intrastromal Corneal Ring Study Group. Arch Ophthalmol 1995 Feb;113(2):159-167.
  8. Management of corneal ectasia after laser in situ keratomileusis with INTACS. J Refract Surg 2002 Jan-Feb;18(1):43-46.
  9. Utilização do Anel de Ferrara na estabilização e correção da ectasia corneana pós PRK. Arq Bras Oftalmol 2000 Jun;63(3):215-218.
  10. Correction of astigmatism with short arc-length intrastromal corneal ring segments: preliminary results. Ophthalmology 2003 Mar;110(3):516-524.
  11. Intrastromal corneal ring: 12-month sighted myopic eyes. J Refract Surg 1996 Jan;12(1):20-28.
  12. The intrastromal ring segments. Phase II results for the correction of myopia. Ophthalmology 1997 Jul;104(7):1067-1078.
  13. Risk factors for self-reported visual symptoms with Intacs inserts for myopia. Ophthalmology 2002 Jan;109(1):46-56.
  14. Intrastromal corneal ring segments: reversibility of refractive effect. J Refract Surg 2001 Jan-Feb;17(1):25-31.
  15. Modification of refraction by means of intracorneal inclusions. Int Ophthalmol Clin 1966 Spring;6(1):53-78.
  16. Técnica cirúrgica para correção de miopia. Anel corneano intra-estromal. Rev Bras Oftalmol 1995;54(8):577-588.
  17. Corneal fluid metabolism: experiments and observations. Arch Ophthalmol 1953 Sep;50(3):282-285.
  18. Ferrara intrastromal corneal ring segments for severe keratoconus. J Refract Surg 2003 Nov-Dec;19(6):645-653.
  19. Ferrara intracorneal ring segments for keratoconus. J Cataract Refract Surg 2004 Apr;30(4):812-820.
  20. Intracorneal ring segments for keratoconus correction: long-term follow-up. J Cataract Refract Surg 2006 Jun;32(6):978-985.
  21. Long-term follow-up of Intacs in Keratoconus. Am J Ophthalmol 2007 Feb;143(2):236-244.
  22. Intacs for the correction of keratoconus: two-year follow-up. J Cataract Refract Surg 2007 Jan;33(1):69-74.
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