Corneal Characteristics of Myopic Malay School Children and Their Association with Axial Length

Syarifah Faiza Syed Mohd Dardin,1,2 Bariah Mohd-Ali,1 Mizhanim Mohamad Shahimin,1 Mohd Norhafizun Mohd Saman,1 Norhani Mohidin1 1Optometry & Vision Science Program and Research Centre for Community Health (ReaCH), Faculty of Health Science, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia;...

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Main Authors: Syed Mohd Dardin SF, Mohd-Ali B, Mohamad Shahimin M, Mohd Saman MN, Mohidin N
Format: Article
Language:English
Published: Dove Medical Press 2024-04-01
Series:Clinical Optometry
Subjects:
Online Access:https://www.dovepress.com/corneal-characteristics-of-myopic-malay-school-children-and-their-asso-peer-reviewed-fulltext-article-OPTO
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author Syed Mohd Dardin SF
Mohd-Ali B
Mohamad Shahimin M
Mohd Saman MN
Mohidin N
author_facet Syed Mohd Dardin SF
Mohd-Ali B
Mohamad Shahimin M
Mohd Saman MN
Mohidin N
author_sort Syed Mohd Dardin SF
collection DOAJ
description Syarifah Faiza Syed Mohd Dardin,1,2 Bariah Mohd-Ali,1 Mizhanim Mohamad Shahimin,1 Mohd Norhafizun Mohd Saman,1 Norhani Mohidin1 1Optometry & Vision Science Program and Research Centre for Community Health (ReaCH), Faculty of Health Science, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia; 2Optometry Service, Allied Health Science Division, Medical Programme, Ministry of Health, Putrajaya, MalaysiaCorrespondence: Bariah Mohd-Ali, Optometry & Vision Science Programme, Research Centre for Community Health (ReaCH), Faculty of Health Science, Universiti Kebangsaan Malaysia, Kuala Lumpur Campus, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300, Malaysia, Tel +60392897602, Fax +60392897604, Email bariah@ukm.edu.myIntroduction: Corneal characteristics are unique to each eye and can vary among different levels of refractive errors. However, minimal data are available in the literature on corneal characteristics in myopic Malay school children including the difference between the low myopic group and the moderate myopic group. Therefore, this study aims to determine the corneal characteristics of myopic Malay school children and their associations with axial length.Methods: A total of eighty-four data samples were extracted from forty-two myopic Malay school children. Measurements of the central corneal thickness (CCT), corneal curvature, corneal diameter, and axial length were measured using Lenstar LS900, a non-contact optical biometer. Data were later stratified by the spherical equivalent refraction (SER) into a low myopic group and a moderate myopic group, and paired t-test were employed to determine the differences in the corneal characteristics between these two groups. Univariate and multivariate linear regressions were performed to identify factors that are significantly associated with axial length.Results: There was no significant difference in the CCT, corneal curvature and corneal diameter between the low myopic group and the moderate myopic group (t82=0.015, P=0.99), (t82=− 0.802, P=0.43) and (t82=− 0.575, P=0.57), respectively. Pearson univariate correlation analysis found that axial length significantly correlated with corneal curvature (r=− 0.765, P< 0.001) and corneal diameter (r=0.614, P< 0.001) but no significant correlation found with CCT (r=0.046, P=0.68). Multiple regression analysis showed that axial length was significantly associated with a flatter corneal curvature (P< 0.001), older age (P< 0.001) and larger corneal diameter (P=0.02).Conclusion: This study reported the corneal characteristics in myopic Malay school children and its associations with axial length. Results of this study can serve as a reference value for the myopic Malay schoolchild population.Keywords: Lenstar LS900, corneal characteristics, Malay, myopic school children
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spelling doaj.art-5d8bca0de30145af8f0eab712ce680ff2024-04-04T16:51:52ZengDove Medical PressClinical Optometry1179-27522024-04-01Volume 1610711491720Corneal Characteristics of Myopic Malay School Children and Their Association with Axial LengthSyed Mohd Dardin SFMohd-Ali BMohamad Shahimin MMohd Saman MNMohidin NSyarifah Faiza Syed Mohd Dardin,1,2 Bariah Mohd-Ali,1 Mizhanim Mohamad Shahimin,1 Mohd Norhafizun Mohd Saman,1 Norhani Mohidin1 1Optometry & Vision Science Program and Research Centre for Community Health (ReaCH), Faculty of Health Science, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia; 2Optometry Service, Allied Health Science Division, Medical Programme, Ministry of Health, Putrajaya, MalaysiaCorrespondence: Bariah Mohd-Ali, Optometry & Vision Science Programme, Research Centre for Community Health (ReaCH), Faculty of Health Science, Universiti Kebangsaan Malaysia, Kuala Lumpur Campus, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300, Malaysia, Tel +60392897602, Fax +60392897604, Email bariah@ukm.edu.myIntroduction: Corneal characteristics are unique to each eye and can vary among different levels of refractive errors. However, minimal data are available in the literature on corneal characteristics in myopic Malay school children including the difference between the low myopic group and the moderate myopic group. Therefore, this study aims to determine the corneal characteristics of myopic Malay school children and their associations with axial length.Methods: A total of eighty-four data samples were extracted from forty-two myopic Malay school children. Measurements of the central corneal thickness (CCT), corneal curvature, corneal diameter, and axial length were measured using Lenstar LS900, a non-contact optical biometer. Data were later stratified by the spherical equivalent refraction (SER) into a low myopic group and a moderate myopic group, and paired t-test were employed to determine the differences in the corneal characteristics between these two groups. Univariate and multivariate linear regressions were performed to identify factors that are significantly associated with axial length.Results: There was no significant difference in the CCT, corneal curvature and corneal diameter between the low myopic group and the moderate myopic group (t82=0.015, P=0.99), (t82=− 0.802, P=0.43) and (t82=− 0.575, P=0.57), respectively. Pearson univariate correlation analysis found that axial length significantly correlated with corneal curvature (r=− 0.765, P< 0.001) and corneal diameter (r=0.614, P< 0.001) but no significant correlation found with CCT (r=0.046, P=0.68). Multiple regression analysis showed that axial length was significantly associated with a flatter corneal curvature (P< 0.001), older age (P< 0.001) and larger corneal diameter (P=0.02).Conclusion: This study reported the corneal characteristics in myopic Malay school children and its associations with axial length. Results of this study can serve as a reference value for the myopic Malay schoolchild population.Keywords: Lenstar LS900, corneal characteristics, Malay, myopic school childrenhttps://www.dovepress.com/corneal-characteristics-of-myopic-malay-school-children-and-their-asso-peer-reviewed-fulltext-article-OPTOlenstar ls900corneal characteristicsmalaymyopic school children
spellingShingle Syed Mohd Dardin SF
Mohd-Ali B
Mohamad Shahimin M
Mohd Saman MN
Mohidin N
Corneal Characteristics of Myopic Malay School Children and Their Association with Axial Length
Clinical Optometry
lenstar ls900
corneal characteristics
malay
myopic school children
title Corneal Characteristics of Myopic Malay School Children and Their Association with Axial Length
title_full Corneal Characteristics of Myopic Malay School Children and Their Association with Axial Length
title_fullStr Corneal Characteristics of Myopic Malay School Children and Their Association with Axial Length
title_full_unstemmed Corneal Characteristics of Myopic Malay School Children and Their Association with Axial Length
title_short Corneal Characteristics of Myopic Malay School Children and Their Association with Axial Length
title_sort corneal characteristics of myopic malay school children and their association with axial length
topic lenstar ls900
corneal characteristics
malay
myopic school children
url https://www.dovepress.com/corneal-characteristics-of-myopic-malay-school-children-and-their-asso-peer-reviewed-fulltext-article-OPTO
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