Research Article
BibTex RIS Cite

Outcome of UVA-Riboflavin collagen cross-linking of cornea in patients with keratoconus

Year 2018, Volume: 43 Issue: 3, 589 - 593, 30.09.2018
https://doi.org/10.17826/cumj.336939

Abstract

Purpose: In this study, we aimed to show changes of central corneal thickness and effects of treatment on visual acuity after corneal collagen cross-linking in keratoconus patients.
Materials and Methods: 26 eyes of 51 patients with keratoconus who undergone corneal collagen cross-linking were included in to the study. Central corneal thickness measurements and best corrected visual acuity were recorded before and after 1st and 6th month of corneal collagen cross-linking operation.
Results: Mean central corneal thickness measurements were recorded as; 435,43±44,35 μm,  376,68±66,55 μm and 392,62±64,21 μm before and after 1st and 6th month of corneal collagen cross-linking, respectively. There was a statistically significant difference between pre-op and postop 1st month, pre-op and postop 6th month and post-op 1st month and post-op 6th month central corneal thickness measurements. Also, there was a statistically significant increase in best corrected visual acuity after the operation.
Conclusion: There was a statistically significant difference between pre-op, post-op 1st month and postop 6th month central corneal thickness and best corrected visual acuity measurements.

References

  • 1. Espandar L, Meyer J. Keratoconus: overview and update on treatment. Middle East Afr J Ophthalmol 2010;17:15-20.
  • 2. Edwards M, McGhee C.N, Dean S. The genetics of keratoconus. Clin Experiment Ophthalmol 2001; 29:345-51.
  • 3. Smith VA, Hoh HB, Littleton M, Easty DL. Over-expression of a gelatinase A activity in keratoconus. Eye (Lond) 1995; 9:429-33.
  • 4. Smith VA, Easty DL. Matrix metalloproteinase 2: involvement in keratoconus. Eur J Ophthalmol 2000; 10:215-26.
  • 5. Parkin BT, Smith VA, Easty DL. The control of matrix metalloproteinase-2 expression in normal and keratoconic corneal keratocyte cultures. Eur J Ophthalmol 2000; 10:276-85.
  • 6. Ku JY, Niederer RL, Patel DV, Sherwin T, McGhee CN. Laser scanning in vivo confocal analysis of keratocyte density in keratoconus. Ophthalmology 2008;115(5):845-50.
  • 7. Rabinowitz YS. Keratoconus. Surv Ophthalmol 1998; 42(4):297-319.
  • 8. Barnett M, Mannis MJ. Contact lenses in the management of keratoconus. Cornea 2011;30(12):1510-6.
  • 9. Dahl BJ, Spotts E, Truong JQ. Corneal collagen cross-linking: An introduction and literature review. Optometry 2012;83(1):33-42.
  • 10. Arne JL, Fournié P. Keratoconus, the most common corneal dystrophy. Can keratoplasty be avoided? Bull Acad Natl Med 2011;195(1):113-29.
  • 11. Touboul D, Trichet E, Binder PS, Praud D, Seguy C, Colin J. Comparison of front-surface corneal topography and Bowman membrane specular topography in keratoconus. J Cataract Refract Surg 2012;38(6):1043-9.
  • 12. Kling S, Ginis H, Marcos S. Corneal Biomechanical Properties from Two-Dimensional Corneal Flap Extensiometry: Application to UV-Riboflavin Cross-Linking. Invest Ophthalmol Vis Sci 2012;53(8):5010-5.
  • 13. Hafezi F, Mrochen M, Iseli HP, Seiler T. Collagen crosslinking with ultraviolet-A and hypoosmolar riboflavin solution in thin corneas. J Cataract Refract Surg 2009;35(4):621-4.
  • 14. Bottós KM, Schor P, Dreyfuss JL, Nader HB, Chamon W. Effect of corneal epithelium on ultraviolet-A and riboflavin absorption. Arq Bras Oftalmol 2011;74(5):348-51.
  • 15. Wollensak G. Crosslinking treatment of progressive keratoconus. Ophthalmology: new hope. Curr Opin Ophthalmol 2006;17(4):356-60.
  • 16. Coskunseven E, Jankov MR, Hafezi F. Contralateral eye study of cornealcollagen cross-linking with riboflavin and UVA irradiation in patients with keratoconus. J Refract Surg 2009;25(4):371-6.
  • 17. Spoerl E, Huhle M, Seiler T. Induction of crosslinks in corneal tissue. Exp Eye Res 1998; 66:97-103.
  • 18. Wollensak G, Spoerl E, Wilsch M, Seiler T. Endothelial cell damage after riboflavinultraviolet- A treatment in the rabbit. J Cataract Refract Surg 2003; 29:1786-1790.
  • 19. Kohlhaas M, Spoerl E, Schilde T, Unger G, Wittig C, Pillunat LE. Biomechanical evidence of the distribution of cross-links in corneas treated with riboflavin and ultraviolet A light. J Cataract Refract Surg 2006; 32:279-283.
  • 20. Wollensak G, Spoerl E, Wilsch M, Seiler T. Keratocyte apoptosis after corneal collagen cross-linking using riboflavin/UVA treatment. Cornea 2004; 23:43-49.
  • 21. Seiler T, Hafezi F. Corneal cross-linking-induced stromal demarcation line. Cornea 2006; 25:1057-1059.
  • 22. Gumuş K, Mirza E, Erkılıc K, et al. İlerleyici Tip Keratokonus Hastalarında Riboflavin/UV-A ile Capraz Bağlama Tedavisinin Erken Donem Sonucları. Turk J Ophthalmol 2010;40:18-24.
  • 23. Greenstein A, ShahVP, Fry KL. Corneal thickness changes after corneal collogen crosslinking for keratoconus and korneal ectasia: One-year results. J Cataract Refract Surg 2011; 37:691-700.
  • 24. Grewal DS, Brar GS, Jain R, Sood V, Singla M, Grewal SP. Corneal collagen crosslinking using riboflavin and ultraviolet-A light for keratoconus: one-year analysis using Scheimpflug imaging. J Cataract Refract Surg 2009; 35:425-432.
  • 25. Koller T, İseli HP, Hafezi F. Scheimpflug imaging of corneas after collagen crosslinking. Cornea 2009; 28:510-515
  • 26. Raiskup F, Spoerl E. Corneal corsslinking with riboflavin and ultraviolet A.I. Principles. The ocular surface 2013;11(2):65-74.
  • 27. Witta-Silva C, Whiting M, Lamoureux E, Lindsay RG, Sullivan LJ, Snibson GR. A randomized controlled trial of corneal collagen cross-linking in progressive keratoconus: preliminary results. J Refract Surg 2008;24:720-5.
  • 28. Vinciguerra R, Seiler T, et al. Refractive, topographic, tomographic, and aberrometric analysis of keratoconic eyes undergoing corneal cross-linking. Ophthalmology 2009;116:369-78.

Keratokonus hastalarında UVA-Riboflavin korneal kollajen çapraz bağlama tedavisinin sonuçları

Year 2018, Volume: 43 Issue: 3, 589 - 593, 30.09.2018
https://doi.org/10.17826/cumj.336939

Abstract

Amaç: Bu çalışmada, keratokonus hastalarında korneal kollajen çapraz bağlama tedavisinin görme keskinliği ve merkezi kornea kalınlığına etkilerinin gösterilmesi amaçlanmıştır.

Gereç ve Yöntem: Korneal kollajen çapraz bağlama işlemi uygulanan 26 hastanın 51 gözü çalışmaya dahil edildi. Merkezi kornea kalınlık ölçümleri ve en iyi düzeltilmiş görme keskinlikleri işlemden önce ve sonrasındaki 1. ay ve 6. ayda kayıt altına alındı.

Bulgular: Ortalama merkezi kornea kalınlık ölçümleri işlem öncesi, işlem sonrası 1. ay ve işlem sonrası 6.ay olmak üzere sırasıyla 435,43±44,35μm, 376,68±66,55μm ve 392,62±64,21 μm olarak kaydedildi. İşlem öncesi ve işlem sonrası 1. ay, işlem öncesi ve işlem sonrası 6.ay ve işlem sonrası 1. ay ve işlem sonrası 6.ay merkezi kornea kalınlığı ölçümleri arasında istatistiksel olarak anlamlı fark bulundu. Aynı zamanda,  işlem sonrası görme keskinliği artışı istatistiksel olarak anlamlı bulundu.

Sonuç: İşlem öncesi, işlem sonrası 1.ay ve işlem sonrası 6. ay merkezi kornea kalınlık ölçümleri ve en iyi düzeltilmiş görme keskinliği ölçümlerinde istatistiksel olarak anlamlı değişiklikler bulundu.


References

  • 1. Espandar L, Meyer J. Keratoconus: overview and update on treatment. Middle East Afr J Ophthalmol 2010;17:15-20.
  • 2. Edwards M, McGhee C.N, Dean S. The genetics of keratoconus. Clin Experiment Ophthalmol 2001; 29:345-51.
  • 3. Smith VA, Hoh HB, Littleton M, Easty DL. Over-expression of a gelatinase A activity in keratoconus. Eye (Lond) 1995; 9:429-33.
  • 4. Smith VA, Easty DL. Matrix metalloproteinase 2: involvement in keratoconus. Eur J Ophthalmol 2000; 10:215-26.
  • 5. Parkin BT, Smith VA, Easty DL. The control of matrix metalloproteinase-2 expression in normal and keratoconic corneal keratocyte cultures. Eur J Ophthalmol 2000; 10:276-85.
  • 6. Ku JY, Niederer RL, Patel DV, Sherwin T, McGhee CN. Laser scanning in vivo confocal analysis of keratocyte density in keratoconus. Ophthalmology 2008;115(5):845-50.
  • 7. Rabinowitz YS. Keratoconus. Surv Ophthalmol 1998; 42(4):297-319.
  • 8. Barnett M, Mannis MJ. Contact lenses in the management of keratoconus. Cornea 2011;30(12):1510-6.
  • 9. Dahl BJ, Spotts E, Truong JQ. Corneal collagen cross-linking: An introduction and literature review. Optometry 2012;83(1):33-42.
  • 10. Arne JL, Fournié P. Keratoconus, the most common corneal dystrophy. Can keratoplasty be avoided? Bull Acad Natl Med 2011;195(1):113-29.
  • 11. Touboul D, Trichet E, Binder PS, Praud D, Seguy C, Colin J. Comparison of front-surface corneal topography and Bowman membrane specular topography in keratoconus. J Cataract Refract Surg 2012;38(6):1043-9.
  • 12. Kling S, Ginis H, Marcos S. Corneal Biomechanical Properties from Two-Dimensional Corneal Flap Extensiometry: Application to UV-Riboflavin Cross-Linking. Invest Ophthalmol Vis Sci 2012;53(8):5010-5.
  • 13. Hafezi F, Mrochen M, Iseli HP, Seiler T. Collagen crosslinking with ultraviolet-A and hypoosmolar riboflavin solution in thin corneas. J Cataract Refract Surg 2009;35(4):621-4.
  • 14. Bottós KM, Schor P, Dreyfuss JL, Nader HB, Chamon W. Effect of corneal epithelium on ultraviolet-A and riboflavin absorption. Arq Bras Oftalmol 2011;74(5):348-51.
  • 15. Wollensak G. Crosslinking treatment of progressive keratoconus. Ophthalmology: new hope. Curr Opin Ophthalmol 2006;17(4):356-60.
  • 16. Coskunseven E, Jankov MR, Hafezi F. Contralateral eye study of cornealcollagen cross-linking with riboflavin and UVA irradiation in patients with keratoconus. J Refract Surg 2009;25(4):371-6.
  • 17. Spoerl E, Huhle M, Seiler T. Induction of crosslinks in corneal tissue. Exp Eye Res 1998; 66:97-103.
  • 18. Wollensak G, Spoerl E, Wilsch M, Seiler T. Endothelial cell damage after riboflavinultraviolet- A treatment in the rabbit. J Cataract Refract Surg 2003; 29:1786-1790.
  • 19. Kohlhaas M, Spoerl E, Schilde T, Unger G, Wittig C, Pillunat LE. Biomechanical evidence of the distribution of cross-links in corneas treated with riboflavin and ultraviolet A light. J Cataract Refract Surg 2006; 32:279-283.
  • 20. Wollensak G, Spoerl E, Wilsch M, Seiler T. Keratocyte apoptosis after corneal collagen cross-linking using riboflavin/UVA treatment. Cornea 2004; 23:43-49.
  • 21. Seiler T, Hafezi F. Corneal cross-linking-induced stromal demarcation line. Cornea 2006; 25:1057-1059.
  • 22. Gumuş K, Mirza E, Erkılıc K, et al. İlerleyici Tip Keratokonus Hastalarında Riboflavin/UV-A ile Capraz Bağlama Tedavisinin Erken Donem Sonucları. Turk J Ophthalmol 2010;40:18-24.
  • 23. Greenstein A, ShahVP, Fry KL. Corneal thickness changes after corneal collogen crosslinking for keratoconus and korneal ectasia: One-year results. J Cataract Refract Surg 2011; 37:691-700.
  • 24. Grewal DS, Brar GS, Jain R, Sood V, Singla M, Grewal SP. Corneal collagen crosslinking using riboflavin and ultraviolet-A light for keratoconus: one-year analysis using Scheimpflug imaging. J Cataract Refract Surg 2009; 35:425-432.
  • 25. Koller T, İseli HP, Hafezi F. Scheimpflug imaging of corneas after collagen crosslinking. Cornea 2009; 28:510-515
  • 26. Raiskup F, Spoerl E. Corneal corsslinking with riboflavin and ultraviolet A.I. Principles. The ocular surface 2013;11(2):65-74.
  • 27. Witta-Silva C, Whiting M, Lamoureux E, Lindsay RG, Sullivan LJ, Snibson GR. A randomized controlled trial of corneal collagen cross-linking in progressive keratoconus: preliminary results. J Refract Surg 2008;24:720-5.
  • 28. Vinciguerra R, Seiler T, et al. Refractive, topographic, tomographic, and aberrometric analysis of keratoconic eyes undergoing corneal cross-linking. Ophthalmology 2009;116:369-78.
There are 28 citations in total.

Details

Primary Language English
Subjects Health Care Administration
Journal Section Research
Authors

Ayşe Sevgi Karadağ

Burak Bilgin

Nusret Özdemir This is me

Publication Date September 30, 2018
Acceptance Date November 17, 2017
Published in Issue Year 2018 Volume: 43 Issue: 3

Cite

MLA Karadağ, Ayşe Sevgi et al. “Outcome of UVA-Riboflavin Collagen Cross-Linking of Cornea in Patients With Keratoconus”. Cukurova Medical Journal, vol. 43, no. 3, 2018, pp. 589-93, doi:10.17826/cumj.336939.