Corneal Curvature Measurements Utilizing a New Swept-source Optical Coherence Tomography Tomey OA-2000® and Comparison With IOL Master® 500 in Pterygium Patients

Introduction: Corneal curvature (CC) is an important anterior segment parameter. This study compared CC measurements conducted with two optical devices in pterygium eyes. Methods: Sixty pterygium eyes of 30 patients were enrolled in this study. CC was measured three times with the optical biometer...

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Autores principales:	Mohd Radzi Hilmi, Khairidzan Mohd Kamal, Mohd Zulfaezal Che Azemin, Mohd Hafidz Ithnin, Md Muziman Syah Md Mustafa, Firdaus Yusof@Alias, Norsham Ahmad
Formato:	article
Lenguaje:	EN
Publicado:	Universitas Sultan Agung Semarang 2018
Materias:	pterygium corneal curvature iol master 500 tomey oa-2000 corneal topography Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/f3cae608de2349bb8c53db3c718fec9f
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spelling	oai:doaj.org-article:f3cae608de2349bb8c53db3c718fec9f2021-11-25T13:16:01ZCorneal Curvature Measurements Utilizing a New Swept-source Optical Coherence Tomography Tomey OA-2000® and Comparison With IOL Master® 500 in Pterygium Patients2085-15452339-093X10.26532/sainsmed.v9i1.2918https://doaj.org/article/f3cae608de2349bb8c53db3c718fec9f2018-11-01T00:00:00Zhttp://jurnal.unissula.ac.id/index.php/sainsmedika/article/view/2918https://doaj.org/toc/2085-1545https://doaj.org/toc/2339-093XIntroduction: Corneal curvature (CC) is an important anterior segment parameter. This study compared CC measurements conducted with two optical devices in pterygium eyes. Methods: Sixty pterygium eyes of 30 patients were enrolled in this study. CC was measured three times with the optical biometer and topography-keratometer Tomey OA-2000 (Tomey Corporation, Nagoya, Japan), then with partial optical coherence interferometry (PCI) IOL Master 500 (Carl Zeiss Meditec, Dublin, CA) and data were statistically analysed. Results: The measurements revealed in a mean CC of 43.86 ± 1.57 D with Tomey OA-2000 and 43.84 ± 1.55 D with IOL Master. Distribution of data is normal, and no significance difference in CC values was detected (P = 0.952) between the two devices. Correlation between CC measurements was highly significant (r = 0. 99; P < 0.0001). The mean difference of CC values between devices was 0.017 D and 95% limit of agreement was -0.088 to 0.12. Duration taken for measurements with the standard biometer IOL Master was longer (55.17 ± 2.24 seconds) than with Tomey OA-2000 (39.88 ± 2.38 seconds) in automatic mode. Duration of manual measurement with Tomey OA-2000 in manual mode was shorter (28.57 ± 2.71 seconds). Conclusion: In pterygium eyes, CC measured with Tomey OA-2000 and IOL Master showed similar values, and high correlation was observed between these two devices. This shows that both devices can be used interchangeably. Tomey OA-2000 is better in terms of faster to operate and has its own topography systems.Mohd Radzi HilmiKhairidzan Mohd KamalMohd Zulfaezal Che AzeminMohd Hafidz IthninMd Muziman Syah Md MustafaFirdaus Yusof@AliasNorsham AhmadUniversitas Sultan Agung Semarangarticlepterygiumcorneal curvatureiol master 500tomey oa-2000corneal topographyMedicine (General)R5-920ENSains Medika, Vol 9, Iss 1 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	pterygium corneal curvature iol master 500 tomey oa-2000 corneal topography Medicine (General) R5-920
spellingShingle	pterygium corneal curvature iol master 500 tomey oa-2000 corneal topography Medicine (General) R5-920 Mohd Radzi Hilmi Khairidzan Mohd Kamal Mohd Zulfaezal Che Azemin Mohd Hafidz Ithnin Md Muziman Syah Md Mustafa Firdaus Yusof@Alias Norsham Ahmad Corneal Curvature Measurements Utilizing a New Swept-source Optical Coherence Tomography Tomey OA-2000® and Comparison With IOL Master® 500 in Pterygium Patients
description	Introduction: Corneal curvature (CC) is an important anterior segment parameter. This study compared CC measurements conducted with two optical devices in pterygium eyes. Methods: Sixty pterygium eyes of 30 patients were enrolled in this study. CC was measured three times with the optical biometer and topography-keratometer Tomey OA-2000 (Tomey Corporation, Nagoya, Japan), then with partial optical coherence interferometry (PCI) IOL Master 500 (Carl Zeiss Meditec, Dublin, CA) and data were statistically analysed. Results: The measurements revealed in a mean CC of 43.86 ± 1.57 D with Tomey OA-2000 and 43.84 ± 1.55 D with IOL Master. Distribution of data is normal, and no significance difference in CC values was detected (P = 0.952) between the two devices. Correlation between CC measurements was highly significant (r = 0. 99; P < 0.0001). The mean difference of CC values between devices was 0.017 D and 95% limit of agreement was -0.088 to 0.12. Duration taken for measurements with the standard biometer IOL Master was longer (55.17 ± 2.24 seconds) than with Tomey OA-2000 (39.88 ± 2.38 seconds) in automatic mode. Duration of manual measurement with Tomey OA-2000 in manual mode was shorter (28.57 ± 2.71 seconds). Conclusion: In pterygium eyes, CC measured with Tomey OA-2000 and IOL Master showed similar values, and high correlation was observed between these two devices. This shows that both devices can be used interchangeably. Tomey OA-2000 is better in terms of faster to operate and has its own topography systems.
format	article
author	Mohd Radzi Hilmi Khairidzan Mohd Kamal Mohd Zulfaezal Che Azemin Mohd Hafidz Ithnin Md Muziman Syah Md Mustafa Firdaus Yusof@Alias Norsham Ahmad
author_facet	Mohd Radzi Hilmi Khairidzan Mohd Kamal Mohd Zulfaezal Che Azemin Mohd Hafidz Ithnin Md Muziman Syah Md Mustafa Firdaus Yusof@Alias Norsham Ahmad
author_sort	Mohd Radzi Hilmi
title	Corneal Curvature Measurements Utilizing a New Swept-source Optical Coherence Tomography Tomey OA-2000® and Comparison With IOL Master® 500 in Pterygium Patients
title_short	Corneal Curvature Measurements Utilizing a New Swept-source Optical Coherence Tomography Tomey OA-2000® and Comparison With IOL Master® 500 in Pterygium Patients
title_full	Corneal Curvature Measurements Utilizing a New Swept-source Optical Coherence Tomography Tomey OA-2000® and Comparison With IOL Master® 500 in Pterygium Patients
title_fullStr	Corneal Curvature Measurements Utilizing a New Swept-source Optical Coherence Tomography Tomey OA-2000® and Comparison With IOL Master® 500 in Pterygium Patients
title_full_unstemmed	Corneal Curvature Measurements Utilizing a New Swept-source Optical Coherence Tomography Tomey OA-2000® and Comparison With IOL Master® 500 in Pterygium Patients
title_sort	corneal curvature measurements utilizing a new swept-source optical coherence tomography tomey oa-2000® and comparison with iol master® 500 in pterygium patients
publisher	Universitas Sultan Agung Semarang
publishDate	2018
url	https://doaj.org/article/f3cae608de2349bb8c53db3c718fec9f
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Corneal Curvature Measurements Utilizing a New Swept-source Optical Coherence Tomography Tomey OA-2000® and Comparison With IOL Master® 500 in Pterygium Patients

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