Journals / Glokom Katarakt / 2017 / Cilt: 12 - Sayı: 3

Comparison of Anterior Segment Measurements with Combined Scheimpfl ug- Placido Disc Topography System and IOLMaster Partial Coherence Interferometry

Kombine Scheimpfl ug-Placido Disk Topografi Sistemi ve IOLMaster Parsiyel Koherens İnterferometri ile Ön Segment Ölçümlerinin Karşılaştırılması

Pages
160–164
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

ACD and Keratometry measurements of both devices may provide comparable values in daily practice.

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: To compare the anterior segment measurements obtained by combined Scheimpfl ug-Placido disk topography system (Sirius, CSO Inc.) with IOLMaster Partial Coherence Interferometry (Carl Zeiss Meditec, Germany) .Material and methods: A total of 100 eyes of 50 healthy individuals (29 males; 21 females) were included in this study.
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Key Findings & Data:The difference between both devices measurements were analysed using Bland-Altman plot and paired t-test, and concordance between them was assessed by calculating 95% limits of agreement.Results: The mean age of cases was 40,06±8,31 years.
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Conclusion & Impact:ACD and Keratometry measurements of both devices may provide comparable values in daily practice.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Purpose: To compare the anterior segment measurements obtained by combined Scheimpfl ug-Placido disk topography system (Sirius, CSO Inc.) with IOLMaster Partial Coherence Interferometry (Carl Zeiss Meditec, Germany) .Material and methods: A total of 100 eyes of 50 healthy individuals (29 males; 21 females) were included in this study. Anterior chamber depth (ACD), keratometry (fl at K and steep K) and corneal astigmatism (CA) were measured with Sirius and IOLMaster. The difference between both devices measurements were analysed using Bland-Altman plot and paired t-test, and concordance between them was assessed by calculating 95% limits of agreement.Results: The mean age of cases was 40,06±8,31 years. The fl at K, steep K and CA values were signifi cantly lower while the ACD readings obtained by the Sirius was higher(p<0.05). Mean values of the ACD, fl at K, steep K and CA taken with the Sirius were 3.50 ± 0.42 mm, 42.75 ±1.14 D, 43.48 ± 1.12 D and -0.73 ± 0.42 D, respectively. Same measurements taken with the IOLMaster lead to -0.85 ± 0.49 D, 3.40 ± 0.41 mm, 42.87 ± 1.16 D and 43.70 ± 1.11 D, respectively. There was a high correlation between the two devices for ACD, fl at K and steep K ( r=0.956, r=0.973, and r=0.975, respectively, p<0.05). Conclusion: ACD and Keratometry values measured with Sirius system and IOLMaster were a statistically signifi cant difference but measurement differences between the devices were clinically negligible. ACD and Keratometry measurements of both devices may provide comparable values in daily practice.

Özet

Amaç: Kombine Scheimpfl ug-Placido topografi sistemi (Sirius, CSO Inc.) ve IOLMaster parsiyel koherens interferometri (Carl Zeiss Meditec, Jena, Germany) ile ön segment ölçümlerinin karşılaştırılması.Gereç ve yöntem: Bu çalışmaya toplam 50 sağlıklı bireyin (29 erkek, 21 kadın) 100 gözü dahil edildi. Sirius ve IOLMaster ile ön kamara derinliği (ÖKD), keratometri (Düz K ve Dik K) ve kornea kaynaklı astigmatizma (KA) değerleri ölçüldü. Cihazların ölçümleri arasındaki fark eşleştirilmiş t testi ve Bland-Altman ile analiz edildi ve ölçümler arasındaki uyumluluk %95 aralığında değerlendirildi. Bulgular: Olguların yaş ortalaması 40,06±8,31 ( 26-64 arası) idi. Sirius ile elde edilen ortalama ÖKD ölçümleri anlamlı olarak daha yüksek iken Düz K, Dik K ve KA değerleri daha düşüktü (p < 0,05). Sirius ile ölçülen ÖKD, Düz K, Dik K ve KA ortalama değerleri sırası ile 3,50 ± 0,42 mm, 42,75 ±1,14 D, 43,48 ± 1,12 D ve -0,73 ± 0,42 D idi. IOLMaster ile alınan aynı ölçümler ise sırasıyla 3,40 ± 0,41 mm, 42,87 ± 1,16 D, 43,70 ± 1,11 D ve -0,85 ± 0,49 D idi. Her iki cihaz arasında ölçülen ÖKD, Düz K, Dik K ve KA parametreler için yüksek bir korelasyon mevcuttu (sırasıyla r=0,956, r=0,973, r=0,975 ve r=0.889, p < 0,05). Sonuç: IOLMaster optik biometri ve Sirius sistemi ile ölçülen ÖKD ve keratometri değerleri istatistiksel olarak anlamlı farklıydı ancak klinik açıdan ölçümler arasındaki fark ihmal edilebilir düzeydedir. Her iki cihazın ÖKD ve keratometri ölçümleri, günlük pratikte karşılaştırılabilir değerler sağlayabilir.

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Cite This Article

USLU, H., YILDIRIM, A. (2017). Comparison of Anterior Segment Measurements with Combined Scheimpfl ug- Placido Disc Topography System and IOLMaster Partial Coherence Interferometry. Glokom Katarakt, Cilt: 12 - Sayı: 3, 160–164. https://ajindex.com/articles/190612

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