Utilization of Anterior Segment Optical Coherence Tomography Enhanced High Resolution Corneal In Measuring Pterygium Thickness

Introduction: As various pterygium morphologies have been advocated as contributing factor on corneal astigmatism, little support in the literature available in establishing techniques in measuring pterygium thickness as clinical indicator. Objective: The aim of this study was to describe a quantit...

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Autores principales:	Mohd Radzi Hilmi, Khairidzan Mohd Kamal, Mohd Zulfaezal Che Azemin, Azrin Esmady Ariffin
Formato:	article
Lenguaje:	EN
Publicado:	Universitas Sultan Agung Semarang 2018
Materias:	pterygium anterior segment oct as-oct morphology thickness reliability Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/7ee96d2ff435496eb259a4ca55f1b373
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spelling	oai:doaj.org-article:7ee96d2ff435496eb259a4ca55f1b3732021-11-25T13:16:08ZUtilization of Anterior Segment Optical Coherence Tomography Enhanced High Resolution Corneal In Measuring Pterygium Thickness2085-15452339-093X10.30659/sainsmed.v9i2.2982https://doaj.org/article/7ee96d2ff435496eb259a4ca55f1b3732018-12-01T00:00:00Zhttp://jurnal.unissula.ac.id/index.php/sainsmedika/article/view/2982https://doaj.org/toc/2085-1545https://doaj.org/toc/2339-093XIntroduction: As various pterygium morphologies have been advocated as contributing factor on corneal astigmatism, little support in the literature available in establishing techniques in measuring pterygium thickness as clinical indicator. Objective: The aim of this study was to describe a quantitative method in determining pterygium thickness using anterior segment optical coherence tomography (AS-OCT). Methods: Anterior segment imaging was performed using enhanced high resolution cornea (EHRC) of Visante™ AS-OCT in 120 primary pterygium eyes. Prior to imaging, corneal topography assessment was performed on each pterygium eye in order to identify its topographic location. Based on topography mapping, three meridians (in degrees) were selected as close as possible to the pterygium border, which signify the demarcation of pterygium from the cornea. Reliability testing between intra and inter-observer of AS-OCT imaging modality was examined using intraclass correlation and scatter plot. Results: The overall (n = 120) mean and standard deviation of pterygium thickness EHRC of AS-OCT modality were 0.48 ± 0.10 mm (confidence interval: 0.45 – 0.50). EHRC of AS-OCT also showed excellent intra and intergrader reliability in measuring pterygium thickness with intraclass correlation of 0.997 (confidence interval: 0.994 – 0.998). Conclusions: EHRC of AS-OCT imaging modality is a better choice in assessing pterygium compared to traditional slit-lamp biomicroscopy. This tool is applicable for future work related to better understanding on the role thickness in pterygium morphology, its progression and prediction of induced corneal astigmatism and visual impairment due to pterygium.Mohd Radzi HilmiKhairidzan Mohd KamalMohd Zulfaezal Che AzeminAzrin Esmady AriffinUniversitas Sultan Agung Semarangarticlepterygiumanterior segment octas-octmorphologythicknessreliabilityMedicine (General)R5-920ENSains Medika, Vol 9, Iss 2, Pp 67-72 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	pterygium anterior segment oct as-oct morphology thickness reliability Medicine (General) R5-920
spellingShingle	pterygium anterior segment oct as-oct morphology thickness reliability Medicine (General) R5-920 Mohd Radzi Hilmi Khairidzan Mohd Kamal Mohd Zulfaezal Che Azemin Azrin Esmady Ariffin Utilization of Anterior Segment Optical Coherence Tomography Enhanced High Resolution Corneal In Measuring Pterygium Thickness
description	Introduction: As various pterygium morphologies have been advocated as contributing factor on corneal astigmatism, little support in the literature available in establishing techniques in measuring pterygium thickness as clinical indicator. Objective: The aim of this study was to describe a quantitative method in determining pterygium thickness using anterior segment optical coherence tomography (AS-OCT). Methods: Anterior segment imaging was performed using enhanced high resolution cornea (EHRC) of Visante™ AS-OCT in 120 primary pterygium eyes. Prior to imaging, corneal topography assessment was performed on each pterygium eye in order to identify its topographic location. Based on topography mapping, three meridians (in degrees) were selected as close as possible to the pterygium border, which signify the demarcation of pterygium from the cornea. Reliability testing between intra and inter-observer of AS-OCT imaging modality was examined using intraclass correlation and scatter plot. Results: The overall (n = 120) mean and standard deviation of pterygium thickness EHRC of AS-OCT modality were 0.48 ± 0.10 mm (confidence interval: 0.45 – 0.50). EHRC of AS-OCT also showed excellent intra and intergrader reliability in measuring pterygium thickness with intraclass correlation of 0.997 (confidence interval: 0.994 – 0.998). Conclusions: EHRC of AS-OCT imaging modality is a better choice in assessing pterygium compared to traditional slit-lamp biomicroscopy. This tool is applicable for future work related to better understanding on the role thickness in pterygium morphology, its progression and prediction of induced corneal astigmatism and visual impairment due to pterygium.
format	article
author	Mohd Radzi Hilmi Khairidzan Mohd Kamal Mohd Zulfaezal Che Azemin Azrin Esmady Ariffin
author_facet	Mohd Radzi Hilmi Khairidzan Mohd Kamal Mohd Zulfaezal Che Azemin Azrin Esmady Ariffin
author_sort	Mohd Radzi Hilmi
title	Utilization of Anterior Segment Optical Coherence Tomography Enhanced High Resolution Corneal In Measuring Pterygium Thickness
title_short	Utilization of Anterior Segment Optical Coherence Tomography Enhanced High Resolution Corneal In Measuring Pterygium Thickness
title_full	Utilization of Anterior Segment Optical Coherence Tomography Enhanced High Resolution Corneal In Measuring Pterygium Thickness
title_fullStr	Utilization of Anterior Segment Optical Coherence Tomography Enhanced High Resolution Corneal In Measuring Pterygium Thickness
title_full_unstemmed	Utilization of Anterior Segment Optical Coherence Tomography Enhanced High Resolution Corneal In Measuring Pterygium Thickness
title_sort	utilization of anterior segment optical coherence tomography enhanced high resolution corneal in measuring pterygium thickness
publisher	Universitas Sultan Agung Semarang
publishDate	2018
url	https://doaj.org/article/7ee96d2ff435496eb259a4ca55f1b373
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Utilization of Anterior Segment Optical Coherence Tomography Enhanced High Resolution Corneal In Measuring Pterygium Thickness

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