Evaluation of Corneal Structure and Endothelial Morphological Characteristics in Type 2 Diabetic and Non-Diabetic Patients

João N Beato,1,2 João Esteves-Leandro,1 David Reis,3 Manuel Falcão,1,2 Vítor Rosas,1 Ângela Carneiro,1,2 Fernando Falcão Reis1,2 1Department of Ophthalmology, São João Hospital, Porto, Portugal; 2Department of Sur...

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Autores principales:	Beato JN, Esteves-Leandro J, Reis D, Falcão M, Rosas V, Carneiro Â, Falcão Reis F
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2020
Materias:	diabetes mellitus endothelium central corneal thickness Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/3b714a410f0443bbb258272c9104465a
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spelling	oai:doaj.org-article:3b714a410f0443bbb258272c9104465a2021-12-02T11:23:32ZEvaluation of Corneal Structure and Endothelial Morphological Characteristics in Type 2 Diabetic and Non-Diabetic Patients1177-5483https://doaj.org/article/3b714a410f0443bbb258272c9104465a2020-07-01T00:00:00Zhttps://www.dovepress.com/evaluation-of-corneal-structure-and-endothelial-morphological-characte-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483João N Beato,1,2 João Esteves-Leandro,1 David Reis,3 Manuel Falcão,1,2 Vítor Rosas,1 Ângela Carneiro,1,2 Fernando Falcão Reis1,2 1Department of Ophthalmology, São João Hospital, Porto, Portugal; 2Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal; 3Faculty of Medicine, University of Porto, Porto, PortugalCorrespondence: João N BeatoDepartment of Ophthalmology, São João Hospital, Al Prof Hernâni Monteiro, Porto 4200-319, PortugalTel +351 225 51 2168Fax +351 225 51 3669Email joao.nuno.beato@gmail.comPurpose: To compare corneal structure and endothelial morphological features between patients with type 2 diabetes mellitus (DM) and non-diabetic patients; and determine if the DM duration, glycated hemoglobin (HbA1c) levels, and diabetic retinopathy (DR) stage affect corneal morphological properties.Patients and Methods: Sixty diabetic patients and 47 age- and sex-matched controls were enrolled in this cross-sectional study. DM group was analyzed according disease duration, HbA1c levels, and presence of retinopathy. Endothelial cell density (ECD) and morphology (average and coefficient of variation [CV] of cell size, percentage of hexagonal cells) were recorded using non-contact specular microscopy. Central corneal thickness (CCT) and corneal volume were measured by scheimpflug tomography. Univariate and multivariate linear regression analyses were performed to evaluate the relationship between demographical, clinical, and ocular variables with CCT and ECD.Results: There were no statistically significant differences in the endothelium cell density or morphology between DM and non-DM groups (p> 0.05). Also, there was no statistical difference between groups for CCT or corneal volume (p> 0.05). Multivariate linear regression analysis showed that older age (p=0.028) was significantly associated with lower ECD; CCT was found to be significantly greater in males (p< 0.001) and positively associated with corneal volume (p< 0.001).Conclusion: The present study did not find any statistically significant differences between the corneal structural and endothelial characteristics of diabetic and non-diabetic subjects; other demographical parameters, such as age and gender, seem to be more determinant for the corneal properties.Keywords: diabetes mellitus, endothelium, central corneal thicknessBeato JNEsteves-Leandro JReis DFalcão MRosas VCarneiro ÂFalcão Reis FDove Medical Pressarticlediabetes mellitusendotheliumcentral corneal thicknessOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 14, Pp 1993-1999 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	diabetes mellitus endothelium central corneal thickness Ophthalmology RE1-994
spellingShingle	diabetes mellitus endothelium central corneal thickness Ophthalmology RE1-994 Beato JN Esteves-Leandro J Reis D Falcão M Rosas V Carneiro Â Falcão Reis F Evaluation of Corneal Structure and Endothelial Morphological Characteristics in Type 2 Diabetic and Non-Diabetic Patients
description	João N Beato,1,2 João Esteves-Leandro,1 David Reis,3 Manuel Falcão,1,2 Vítor Rosas,1 Ângela Carneiro,1,2 Fernando Falcão Reis1,2 1Department of Ophthalmology, São João Hospital, Porto, Portugal; 2Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal; 3Faculty of Medicine, University of Porto, Porto, PortugalCorrespondence: João N BeatoDepartment of Ophthalmology, São João Hospital, Al Prof Hernâni Monteiro, Porto 4200-319, PortugalTel +351 225 51 2168Fax +351 225 51 3669Email joao.nuno.beato@gmail.comPurpose: To compare corneal structure and endothelial morphological features between patients with type 2 diabetes mellitus (DM) and non-diabetic patients; and determine if the DM duration, glycated hemoglobin (HbA1c) levels, and diabetic retinopathy (DR) stage affect corneal morphological properties.Patients and Methods: Sixty diabetic patients and 47 age- and sex-matched controls were enrolled in this cross-sectional study. DM group was analyzed according disease duration, HbA1c levels, and presence of retinopathy. Endothelial cell density (ECD) and morphology (average and coefficient of variation [CV] of cell size, percentage of hexagonal cells) were recorded using non-contact specular microscopy. Central corneal thickness (CCT) and corneal volume were measured by scheimpflug tomography. Univariate and multivariate linear regression analyses were performed to evaluate the relationship between demographical, clinical, and ocular variables with CCT and ECD.Results: There were no statistically significant differences in the endothelium cell density or morphology between DM and non-DM groups (p> 0.05). Also, there was no statistical difference between groups for CCT or corneal volume (p> 0.05). Multivariate linear regression analysis showed that older age (p=0.028) was significantly associated with lower ECD; CCT was found to be significantly greater in males (p< 0.001) and positively associated with corneal volume (p< 0.001).Conclusion: The present study did not find any statistically significant differences between the corneal structural and endothelial characteristics of diabetic and non-diabetic subjects; other demographical parameters, such as age and gender, seem to be more determinant for the corneal properties.Keywords: diabetes mellitus, endothelium, central corneal thickness
format	article
author	Beato JN Esteves-Leandro J Reis D Falcão M Rosas V Carneiro Â Falcão Reis F
author_facet	Beato JN Esteves-Leandro J Reis D Falcão M Rosas V Carneiro Â Falcão Reis F
author_sort	Beato JN
title	Evaluation of Corneal Structure and Endothelial Morphological Characteristics in Type 2 Diabetic and Non-Diabetic Patients
title_short	Evaluation of Corneal Structure and Endothelial Morphological Characteristics in Type 2 Diabetic and Non-Diabetic Patients
title_full	Evaluation of Corneal Structure and Endothelial Morphological Characteristics in Type 2 Diabetic and Non-Diabetic Patients
title_fullStr	Evaluation of Corneal Structure and Endothelial Morphological Characteristics in Type 2 Diabetic and Non-Diabetic Patients
title_full_unstemmed	Evaluation of Corneal Structure and Endothelial Morphological Characteristics in Type 2 Diabetic and Non-Diabetic Patients
title_sort	evaluation of corneal structure and endothelial morphological characteristics in type 2 diabetic and non-diabetic patients
publisher	Dove Medical Press
publishDate	2020
url	https://doaj.org/article/3b714a410f0443bbb258272c9104465a
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Evaluation of Corneal Structure and Endothelial Morphological Characteristics in Type 2 Diabetic and Non-Diabetic Patients

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