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Journals / Türk Oftalmoloji Dergisi / 2020 / Cilt: 50 - Sayı: 6

Use of a Mini-Scleral Lens in Patients with Keratoconus

Keratokonus Hastalarında Mini-Skleral Lens Kullanımı

Semra AKKAYA TURHAN
Ebru TOKER
Deniz ÖZARSLAN ÖZCAN
Pages
339–342
Publication Date
2022-11-06
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

High- andlow-contrast visual acuity (VA), subjective performance for comfort and vision (5-point Likert scale), and overall satisfaction with thelens (100 mm visual analog scale [VAS]) were measured before and after lens wear.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: To assess the visual performance of a mini-scleral lens in patients with keratoconus and to evaluate its fit by opticalcoherence tomography (OCT).
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Key Findings & Data:Materials and Methods: Twenty-nine eyes of 24 patients with keratoconus were fitted with a mini-scleral lens (Esclera; MediphacosInc., Belo Horizonte, Brazil).
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Conclusion & Impact:High- andlow-contrast visual acuity (VA), subjective performance for comfort and vision (5-point Likert scale), and overall satisfaction with thelens (100 mm visual analog scale [VAS]) were measured before and after lens wear.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: To assess the visual performance of a mini-scleral lens in patients with keratoconus and to evaluate its fit by opticalcoherence tomography (OCT). Materials and Methods: Twenty-nine eyes of 24 patients with keratoconus were fitted with a mini-scleral lens (Esclera; MediphacosInc., Belo Horizonte, Brazil). Diagnostic lenses were used in the initial fitting process. The lens fit was evaluated by the fluoresceinpattern and also by anterior segment OCT (RTVue, Optovue Inc., Fremont, CA). Within 30-45 minutes after insertion, the lens fitparameters including central corneal and limbal clearance, and peripheral landing zone alignment were evaluated by OCT. High- andlow-contrast visual acuity (VA), subjective performance for comfort and vision (5-point Likert scale), and overall satisfaction with thelens (100 mm visual analog scale [VAS]) were measured before and after lens wear. Results: The mean decimal high-contrast VA (best spectacle-corrected VA: 0.40±0.14 vs VA with the scleral lens: 0.93±0.12, p

Özet

Amaç: Keratokonus hastalarında mini-skleral lensin görsel performansını ve lens uyumunu optik koherens tomografi (OKT) ile değerlendirmek.Gereç ve Yöntem: Yirmi dört keratokonus hastasının 29 gözüne mini-skleral lens (Esclera; Mediphacos Ltd., Belo Horizonte, Brezilya) uygulandı. Başlangıç uyumunun değerlendirilmesinde, deneme lensleri kullanıldı. Lens uyumu, floresein paterni ve ön segment OKT (RTVue, Optovue Inc., Fremont, CA) görüntülemesi ile değerlendirildi. Lens uygulandıktan 30-45 dakika sonra korneal-limbal açıklık ve periferik yerleşim bölgesinin uyumunu içeren lens uyum parametreleri, OKT ile değerlendirildi. Lens uygulamasının öncesinde ve sonrasında; yüksek ve düşük kontrastlı görme keskinliği (GK), konfor, görmenin subjektif performansı (5 puanlı Likert skalası) ve genel memnuniyeti [100 mm görsel analog skalası (GAS)] değerlendirildi.Bulgular: Lens uygulaması sonrasında; ortalama desimal yüksek kontrastlı GK (en iyi düzeltilmiş gözlükle GK: 0,40±0,14 vs skleral lens ile GK: 0,93±0,12 p

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Cite This Article

TURHAN, S. A., TOKER, E., ÖZCAN, D. Ö. (2022). Use of a Mini-Scleral Lens in Patients with Keratoconus. Türk Oftalmoloji Dergisi, Cilt: 50 - Sayı: 6, 339–342. https://ajindex.com/articles/637655

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References (16)

  1. Schornack MM, Patel SV. Scleral lenses in the management of keratoconus. Eye Contact Lens. 2010;36:39-44
  2. Nakagawa T, Maeda N, Kosaki R, Hori Y, Inoue T, Saika M, Mihashi T, Fujikado T, Tano Y. Higher-order aberrations due to the posterior corneal surface in patients with keratoconus. Invest Ophthalmol Vis Sci. 2009;50:2660-2665
  3. Negishi K, Kumanomido T, Utsumi Y, Tsubota K. Effect of higher-order aberrations on visual function in keratoconic eyes with a rigid gas permeable contact lens. Am J Ophthalmol. 2007;144:924-929
  4. Zadnik K, Barr JT, Edrington TB, Nichols JJ, Wilson BS, Siegmund K, Gordon MO. Corneal scarring and vision in keratoconus: a baseline report from the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Cornea. 2000;19:804-812
  5. Koppen C, Kreps EO, Anthonissen L, Van Hoey M, Dhubhghaill SN, Vermeulen L. Scleral Lenses Reduce the Need for Corneal Transplants in Severe Keratoconus. Am J Ophthalmol. 2018;185:43-47
  6. Grey F, Carley F, Biswas S, Tromans C. Scleral contact lens management of bilateral exposure and neurotrophic keratopathy. Cont Lens Anterior Eye. 2012;35:288-291
  7. Alipour F, Kheirkhah A, Jabarvand Behrouz M. Use of mini scleral contact lenses in moderate to severe dry eye. Cont Lens Anterior Eye. 2012;35:272- 276
  8. Pullum K, Buckley R. Therapeutic and ocular surface indications for scleral contact lenses. Ocul Surf. 2007;5:40-48
  9. Harthan J, Shorter E, Nau C, Nau A, Schornack MM, Zhuang X, Fogt J. Scleral lens fitting and assessment strategies. Cont Lens Anterior Eye. 2019;42:9-14
  10. Vincent SJ, Alonso-Caneiro D, Collins MJ. Optical coherence tomography and scleral contact lenses: clinical and research applications. Clin Exp Optom. 2019;102:224-241
  11. Gemoules G. A novel method of fitting scleral lenses using high resolution optical coherence tomography. Eye Contact Lens. 2008;34:80-83
  12. Pelli DG, Bex P. Measuring contrast sensitivity. Vision Res. 2013;90:10-14
  13. Krumeich JH, Daniel J, Knulle A. Live-epikeratophakia for keratoconus. J Cataract Refract Surg. 1998;24:456-463
  14. Severinsky B, Behrman S, Frucht-Pery J, Solomon A. Scleral contact lenses for visual rehabilitation after penetrating keratoplasty: long term outcomes. Cont Lens Anterior Eye. 2014;37:196-202
  15. Segal O, Barkana Y, Hourovitz D, Behrman S, Kamun Y, Avni I, Zadok D. Scleral contact lenses may help where other modalities fail. Cornea. 2003;22:308-310
  16. Visser ES, Visser R, van Lier HJ, Otten HM. Modern scle