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Journals / MN Oftalmoloji / 2014 / Cilt: 21 - Sayı: 4

Comparison of intraocular pressure measurements using four different tonometers and ıts relation with centrel corneal thickness in glaucoma patients

Glokomlu olgularda dört farklı tonometreyle ölçülen göz içi basınç ölçüm sonuçlarının karşılaştırılması ve merkezi kornea kalınlığı ile ilişkileri

ABDULGANİ KAYMAZ
Serdal ÇELEBİ
Fatih ULAŞ
Ümit DOĞAN
Pages
245–252
DOI
—
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AI Summary & Key Takeaways

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

Conclusion: GAT, Canon TX-10, Canon TX-20P and Tonopen measurements should not be used interchangeably.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: To compare intraocular pressure measurements using four different tonometers and its relation with central corneal thickness in glaucoma patients.
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Key Findings & Data:Material and Method: We measured IOP using Goldmann applanation tonometry (GAT), Tonopen tonometer (Tonopen Avia) and noncontact tonometer (NCT) (Canon TX-10 and TX-20P) and measured central corneal thickness (CCT) using ultrasonic pachymeter in glaucoma patients.
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Conclusion & Impact:Conclusion: GAT, Canon TX-10, Canon TX-20P and Tonopen measurements should not be used interchangeably.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Aim: To compare intraocular pressure measurements using four different tonometers and its relation with central corneal thickness in glaucoma patients. Material and Method: We measured IOP using Goldmann applanation tonometry (GAT), Tonopen tonometer (Tonopen Avia) and noncontact tonometer (NCT) (Canon TX-10 and TX-20P) and measured central corneal thickness (CCT) using ultrasonic pachymeter in glaucoma patients. Results: The study included 67 glaucoma patients with a mean age of 64.09±8.017. IOP values that were measured using NCT TX-10 and TX-20P IOPstd (IOP measurement of Canon TX-20P, which was not corrected according to central corneal thickness) had statistically moderate and significant correlation with CCT (respectively, TX-10 r=0.285, p=0.019, TX-20P IOPstd r=0.326 p=0.007). The IOP measurements of NCT TX-20P IOPcor (IOP measurement of Canon TX-20P, which was corrected according to central corneal thickness), Tonopen and GAT did not correlate significantly with CCT (TX-20P IOPcor p=0.825, Tonopen p=0.980 ve GAT p=0.740). Although IOP measurements of Canon TX-10 and Tonopen were slightly higher than GAT (1.5 mmHg and 1.8 mmHg, respectively), 95% confidence interval value had clinically unacceptable amplitude (5.5 mmHg and 5.6 mmHg, respectively). Canon TX-20PIOPstd and TX-20P IOPcor measurements were clinically unacceptably higher than GAT IOP measurements (3 mmHg and 3.5 mmHg, respectively). Conclusion: GAT, Canon TX-10, Canon TX-20P and Tonopen measurements should not be used interchangeably.

Özet

Amaç: Glokomlu olgularda dört farklı tonometreyle ölçülen göz içi basınçlarının (GİB)karşılaştırılması ve merkezi kornea kalınlığı (MKK) ile ilişkilerinin araştırılması. Gereç ve Yöntem: Çalışmamızda glokom tanısı almış olguların Goldmann aplanasyon tonometresi (GAT), Tonopen tonometre (Tonopen Avia) ve nonkontakt tonometreler (NKT) (Canon TX-10 ve TX-20P) ile GİB ölçümleri ve ultrasonik pakimetre cihazı ile MKK ölçümleri yapıldı. Bulgular: Çalışmaya katılan 67 glokomlu olgunun yaş ortalaması 64,09±8,017 idi. Çalışmamızda Canon TX-10 ve TX-20P GİBstd (MKK'ye göre düzeltilmemiş Canon TX-20P GİB ölçümü) ile ölçülen GİB sonuçlarıyla MKK arasında istatistiksel olarak anlamlı orta düzeyde ilişki saptandı (sırasıyla TX-10 r=0,285, p=0,019, TX-20P GİBstd r=0,326, p=0,007). NKT TX-20P GİBcor (MKK'ye göre düzeltilmiş Canon TX-20P GİB ölçümü), Tonopen ve GAT ile ölçülen GİB değerleri ile MKK arasında istatistiksel olarak anlamlı ilişki saptanmadı (TX-20P GİBcor p=0,825, Tonopen p=0,980 ve GAT p=0,740). Canon TX-10 ve Tonopen ile ölçülen GİB değerleri GAT ile ölçülene göre hafif yüksek olmasına rağmen (sırasıyla 1,5 ve 1,8 mmHg) % 95’lik güven aralığı değerleri (sırasıyla 5,5 ve 5,6 mmHg) klinik olarak kabul edilemeyecek düzeylerdeydi. Canon TX-20P GİBstd ve TX-20P GİBcor değerleri GAT ile ölçülen GİB değerlerine göre klinik olarak kabul edilemeyecek düzeylerde yüksekti (sırasıyla 3 ve 3,5 mmHg). Sonuç: GAT, Canon TX-10, Canon TX-20P ve Tonopen ölçüm sonuçları birbirlerinin yerlerine kullanılmamalıdır.

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Cite This Article

KAYMAZ, A., ÇELEBİ, S., ULAŞ, F., DOĞAN, Ü. (2014). Comparison of intraocular pressure measurements using four different tonometers and ıts relation with centrel corneal thickness in glaucoma patients. MN Oftalmoloji, Cilt: 21 - Sayı: 4, 245–252. https://ajindex.com/articles/295599

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