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Journals / Glokom Katarakt / 2011 / Cilt: 6 - Sayı: 1

The effect of central corneal thickness on intraocular pressure values measured by goldmann applanation tonometer and pascal dynamic counter tonometer

Santral kornea kalınlığının goldmann applanasyon tonometresi ve pascal dinamik kontur tonometre ölçümlerine etkisi

Zerrin TUNCER
Pages
36–39
DOI
—
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AI Summary & Key Takeaways

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

The measuremants with PDCT were more reliable in thinner corneas.

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: To investigate the effect of central corneal thickness (CCT) on Goldmann Applanation Tonometer (GAT) and Pascal Dinamic Contour Tonometer (PDCT) values.
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Key Findings & Data:Materials and Methods: In a prospective study,results of 324 eyes of 190 cases (109 women, 81 men) were analysed.
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Conclusion & Impact:The measuremants with PDCT were more reliable in thinner corneas.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Purpose: To investigate the effect of central corneal thickness (CCT) on Goldmann Applanation Tonometer (GAT) and Pascal Dinamic Contour Tonometer (PDCT) values. Materials and Methods: In a prospective study,results of 324 eyes of 190 cases (109 women, 81 men) were analysed. CCT was measured by ultrasonic pachymeter; intraocular pressure (IOP) was measured by GAT and PDCT. Cases were divided in three groups according to CCT values; patients with CCT>570 &#956;m. were included in first group, between 521-569 &#956;m. in second group and CCT<520 &#956;m. in third group. Collected data was analysed statistically by using Statistical Package for Social Sciences (SPSS) program. Results: Mean age of the patients was 55.48±17.15. Mean CCT of the patients were found 590.88±14.92 &#956;m. in first group, 544.74±14.03 &#956;m. in second group and 487.58±33.06 &#956;m. in third group. Mean IOP values measured with GAT and PDCT were 17.50±3.53 and 20.18±3.91 in first group; 16.70±3.56 and 19.90±3.44 in second group; 14.08±3.43 and 17.87±3.28 in third group, respectively. The IOP measurements obtained with PDCT were significantly higher than the ones with GAT (p<0.0001). There were positive correlations between the measurements of GAT and PDCT with CCT. Conclusion: The IOP measurements obtained by PDCT were higher than GAT. In thinner corneas, IOP values were decreased both in PDCT and GAT. Besides, as the CCT values decreased, the difference between two measurements were increased. The measuremants with PDCT were more reliable in thinner corneas.

Özet

Amaç: Santral Kornea Kalınlığının (SKK), Goldmann Applanasyon Tonometresi (GAT) ve Pascal Dinamik Kontur Tonometre (PDKT) ile ölçülen göz içi basıncı (GİB) değerleri üzerine etkisini araştırmak. Gereç ve Yöntem: Rutin göz muayenesi yapılan 81 erkek, 109 kadın toplam 190 hastanın 324 gözü çalışmaya alındı. SKK ultrasonik pakimetre ile, GİB’ları GAT ve PDKT ile ölçüldü. Hastalar SKK’na göre 3 gruba ayrıldı. SKK>570 μm. olanlar 1. grupta, SKK 521-569 μm. arası olanlar 2. grupta, SKK<520 μm. olanlar 3. grupta toplandı. İstatistiksel analizler, istatistik paket programı (SPSS) kullanılarak yapıldı. Bulgular: Hastaların yaş ortalaması 55.48±17.15; SKK ortalaması 1. grupta 590.88±14.92 μm., 2. grupta 544.74±14.03 μm., 3. grupta 487.58±33.06 μm. idi. GİB değerleri sırası ile GAT ve PDKT ölçümlerinde 1. grupta 17.50±3.53 ve 20.18±3.91; 2. grupta 16.70±3.56 ve 19.90±3.44; 3. grupta ise 14.08±3.43 ve 17.87±3.28 bulundu. Bütün gruplarda GAT ile ölçülen GİB değerleri, PDKT ile ölçülen değerlerle kıyaslandığında istatistiksel olarak anlamlı derecede düşük olduğu gözlendi (p<0.0001). GAT ve PDKT ile alınan ölçümler ile SKK arasında pozitif korelasyon bulundu. Sonuç: PDKT ile ölçülen GİB değerleri, GAT ile ölçülen değerlere göre daha yüksek sonuçlar vermektedir. SKK azaldıkça, ölçülen GİB değerlerinin de azalmakta olduğu, ayrıca iki ölçümle alınan GİB değerleri arasındaki farkın arttığı gözlenmiştir. İnce kornealarda PDKT ile alınan ölçümler daha güvenilirdir

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Cite This Article

TUNCER, Z. (2011). The effect of central corneal thickness on intraocular pressure values measured by goldmann applanation tonometer and pascal dynamic counter tonometer. Glokom Katarakt, Cilt: 6 - Sayı: 1, 36–39. https://ajindex.com/articles/226831

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