Intracorneal ring implantation in keratoconus

Conclusion: ICRI in progressive keratoconus patients decreases keratometric and astig- matic values, increases visual acuity; and also its complication rate is low

📌 3 Key Takeaways

🎯

Objective & Hypothesis:Aim: To evaluate the safety and effectivity of intracorneal ring implantation (ICRI) in pro- gressive keratoconus patients.

📊

Key Findings & Data:Material and Method: Fifty seven eyes of 45 keratoconus patients who underwent ICRI (Ferrara Rings, AJL Ophthalmic, Alava, Spain) between 2008 and 2011 years at Türkiye Hospital Eye Clinic, were involved in this study.

💡

Conclusion & Impact:Conclusion: ICRI in progressive keratoconus patients decreases keratometric and astig- matic values, increases visual acuity; and also its complication rate is low

🔬Design:Research Article

📍Scope:2008 Verileri

⚙️Variables:Domain Parameters

Abstract

Aim: To evaluate the safety and effectivity of intracorneal ring implantation (ICRI) in pro- gressive keratoconus patients. Material and Method: Fifty seven eyes of 45 keratoconus patients who underwent ICRI (Ferrara Rings, AJL Ophthalmic, Alava, Spain) between 2008 and 2011 years at Türkiye Hospital Eye Clinic, were involved in this study. It is a retrospective study. The patients were followed up 12 months at 3 months intervals. Results: Double ICRs were implanted in 52 eyes and single ICR was implanted in 5 eyes. Mean age of the patients was 26.84 ± 8.76 years. Mean keratometry value decreased from 52.54±5.02 Diopters (D) to 48.83±4.46 D at 12th month postoperatively (p=0.000). BCDVA improved from 0.30±0.21 (Snellen Chart) to 0.58 ± 0.21 (p=0.000). Mean spherical error de- creased from -4.51±3.30 D preoperatively to -1.81±2.29 D at postoperative 12th month (p=0,000). Mean cylindrical error decreased from -6.26±2.66 D to -3.75±2.59 D (p=0.000). Post-operative complications were corneal thinning and melting in one case, and descement membrane wrinkles in one case. Conclusion: ICRI in progressive keratoconus patients decreases keratometric and astig- matic values, increases visual acuity; and also its complication rate is low

Özet

Amaç: İlerleyici keratokonus hastalarında intrakorneal halka (İKH) uygulamasının etkin- liğini ve güvenilirliğini değerlendirmek. Gereç ve Yöntem: Çalışmamıza, Türkiye Hastanesi Göz Kliniği’nde, 2008 - 2011 yılları arasında intrakorneal halka (Ferrara Rings, AJL Ophthalmic, Alava, Spain) takılmış 45 kera- tokonus hastasının 57 gözü dahil edildi. Çalışma retrospektif olarak tasarlandı. Hastalar üçer aylık aralıklarla 12 ay süre ile takip edildi. Bulgular: Gözlerin 52’sine çift halka, 5’ine tek halka takılmıştı. Hastaların ortalama yaşı 26,84 ± 8,76 yıl idi. Ameliyat öncesi ortalama keratometri değeri 52,54 ± 5,02 dioptriden ame- liyat sonrası 12. ayda 48,83 ± 4,46 dioptriye geriledi (p=0,000). Ameliyat öncesi Snellen eşe- linde ortalama en iyi düzeltilmiş görme keskinliği 0,30±0,21’den ameliyat sonrası 0,58± 0,21’e çıktı (p=0,000). Ameliyat öncesi ortalama -4,51±3,30 Dioptri (D) olan sferik değer, ameliyat sonrası 12. ayda -1,81±2,29 D’ye geriledi (p=0,000). Ameliyat öncesi ortalama -6,26 ± 2,66 D olan silindirik değer, ameliyat sonrası 12. ayda -3,75 ± 2,59 D’ye geriledi (p=0,000). Ameliyat sonrası komplikasyon olarak, bir olguda korneada incelme ve erime, başka bir ol- guda da desme membranı kırışıklığı gelişti. Sonuç: Keratokonus hastalarında, İKH uygulaması, keratometrik ve astigmatik değerler- de azalma ile birlikte görme keskinliğini arttırmaktadır; ayrıca komplikasyon oranı düşüktür.

🔖

Cite This Article

AKIR, H., PEKEL, G., PERENTE, İ., Genç, S., PEKEL, E., ACER, S. (2013). Intracorneal ring implantation in keratoconus. MN Oftalmoloji, Cilt: 20 - Sayı: 2, 82–85. https://ajindex.com/articles/294092

📄 Full Text PDF Viewer

Open in New Tab ↗

↗New Tab

📄

PDF görüntüleyici hazırlanıyor...

References (15)

Krachmer JH, Feder RS, Belin MW. Keratoconus and related noninflammatory corneal disorders. Surv Ophthalmol 1984; 28:293-322
Gümüş K, Mirza E, Erkılıç K, ve ark. İlerleyici tip keratokonus hastalarında Riboflavin-UVA ile Çapraz Bağlama Tedavisinin Erken Dönem Sonuçları. T Oft Gaz 2010;40:18-24
Wachler BS, Christie JP, Chandra NS, Chou B, Korn T, Nepomuceno R. Intacs for keratoconus. Ophthalmology 2003;110:1031-40
Alio ́ JL, Shabayek MH, Artola A. Intracorneal ring segments for keratoconus corrections: long term follow-up. J Cataract Refract Surg 2006;32:978-85
Torquetti L, Berbel RF, Ferrara P. Long-term follow-up of in- trastromal corneal ring segments in keratoconus. J Cataract Refract Surg 2009;35:1768-73
Dauwe C, Touboul D, Roberts CJ, Mahmoud AM, Kerautret J, Fournier P, Malecaze F, Colin J. Biomechanical and morpho- logical corneal response to placement of intrastromal corneal ring segments for keratoconus. Cataract Refract Surg 2009; 35:1761-7
Asbell PA, Uçakhan ÖÖ, Durrie DS, Lindstrom RL. Adjustability of refractive effect for corneal ring segment. J Refract Surg 1999;15:627-631
Colin J, Cochener B, Savary G, et al. INTACS inserts for treating keratoconus; one-year results. Ophthalmology 2001; 108:1409-14
Ferrara de A, Cunha P. Tecnica cirurgica para correcao de miopia; Anel corneano intra-estromal. Rev Bras Oftalmol 1995;54:577-88
Sipahier A, Eroğlu F, Yeniad B, Gücükoğlu A. Keratokonusta Keraring implantasyonu sonuçlarımız. T Oft Gaz 2009; 39: 361-5
Kwitko S, Severo NS. Ferrara intracorneal ring segments for keratoconus. J Cataract Refract Surg 2004;30:812-20
Shetty R, Kurian M, Anand D, Mhaske P, Narayana KM, Shetty BK. Intacs in Advanced Keratoconus. Cornea 2008; 27:1022-9
Ferrara P, Torquetti L. Clinical outcomes after implantation of a new intrastromal corneal ring with a 210-degree arc length. J Cataract Refract Surg 2009;35:1604-8
Kubaloglu A, Cinar Y, Sari ES, Koytak A, Ozdemir B, Ozerturk Y. Comparison of 2 intrastromal corneal ring segment models in the management of keratoconus. J Cataract Refract Surg 2010;36:978-85
Carrasquillo KG, Rand J, Talamo JH. Intacs for Keratoconus and Post-LASIK Ectasia: Mechanical Versus Femtosecond Laser–Assisted Channel Creation. Cornea 2007;26:956-62.