Comparison of Scheimpflug imaging parameters between steep and keratoconic corneas of Caucasian eyes

Tukezban Huseynova,1 Farah Abdulaliyeva,2 Michele Lanza3 1Briz-L Eye Clinic, 2National Ophthalmology Center, Baku, Azerbaijan; 3Second University of Naples, Caserta, Campania, Italy Purpose: To compare the keratometric and pachymetric parameters of healthy eyes with those affected by steep cornea...

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Autores principales:	Huseynova T, Abdulaliyeva F, Lanza M
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2016
Materias:	Scheimpflug camera Scheimpflug measurements keratoconus corneal tomography Ambrosio relational thickness Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/13a9309170cc40e5b34176941513ffc2
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spelling	oai:doaj.org-article:13a9309170cc40e5b34176941513ffc22021-12-02T00:02:45ZComparison of Scheimpflug imaging parameters between steep and keratoconic corneas of Caucasian eyes1177-5483https://doaj.org/article/13a9309170cc40e5b34176941513ffc22016-04-01T00:00:00Zhttps://www.dovepress.com/comparison-of-scheimpflug-imaging-parameters-between-steep-and-keratoc-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Tukezban Huseynova,1 Farah Abdulaliyeva,2 Michele Lanza3 1Briz-L Eye Clinic, 2National Ophthalmology Center, Baku, Azerbaijan; 3Second University of Naples, Caserta, Campania, Italy Purpose: To compare the keratometric and pachymetric parameters of healthy eyes with those affected by steep cornea and keratoconus (KC) using Scheimpflug camera.Setting: Briz-L Eye Clinic, Baku, Azerbaijan.Design: A cross-sectional study.Methods: In this study, 49 KC (Amsler–Krumeich stage 1) eyes and 36 healthy eyes were enrolled. A complete ophthalmic evaluation and a Scheimpflug camera scan were performed in every eye included in the study. Tomographic parameters such as parameters from the front and back cornea, maximum keratometry reading (Kmax), corneal volume (CV), anterior chamber volume (ChV), anterior chamber depth (ACD), anterior chamber angle (AC angle), keratometric power deviation (KPD), maximum front elevation (Max FE), and maximum back elevation (Max BE), as well as pachymetric progression indices (PPI), Ambrosio relational thickness (ART), index of surface variance (ISV), index of vertical asymmetry (IVA), center keratoconus index (CKI), index of height asymmetry (IHA), index of height decentration (IHD), and radius minimum (RM) were collected and statistically compared between the two groups.Results: PPI, ART, ISV, IVA, CKI, IHA, IHD, and RM parameter values were significantly different (P<0.05) between the KC and healthy eyes. There were no significant differences in K mean and Q values of the frontal corneal parameters, as well as in Kmax, AC angle, RM, back, and front astigmatism, between stage 1 keratoconic and normal Caucasian eyes with steep cornea. All other parameters such as K mean and Q values of the back corneal parameters, Max FE, Max BE, ACD, ChV, and CV showed significant differences between the groups (P<0.05 for all). Conclusion: Scheimpflug imaging is able to detect corneal morphological differences between stage 1 KC eyes and healthy eyes with steep cornea, in Caucasians. Keywords: Scheimpflug camera, Scheimpflug measurements, keratoconus, corneal tomography, Ambrosio relational thicknessHuseynova TAbdulaliyeva FLanza MDove Medical PressarticleScheimpflug cameraScheimpflug measurementskeratoconuscorneal tomographyAmbrosio relational thicknessOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2016, Iss Issue 1, Pp 603-608 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Scheimpflug camera Scheimpflug measurements keratoconus corneal tomography Ambrosio relational thickness Ophthalmology RE1-994
spellingShingle	Scheimpflug camera Scheimpflug measurements keratoconus corneal tomography Ambrosio relational thickness Ophthalmology RE1-994 Huseynova T Abdulaliyeva F Lanza M Comparison of Scheimpflug imaging parameters between steep and keratoconic corneas of Caucasian eyes
description	Tukezban Huseynova,1 Farah Abdulaliyeva,2 Michele Lanza3 1Briz-L Eye Clinic, 2National Ophthalmology Center, Baku, Azerbaijan; 3Second University of Naples, Caserta, Campania, Italy Purpose: To compare the keratometric and pachymetric parameters of healthy eyes with those affected by steep cornea and keratoconus (KC) using Scheimpflug camera.Setting: Briz-L Eye Clinic, Baku, Azerbaijan.Design: A cross-sectional study.Methods: In this study, 49 KC (Amsler–Krumeich stage 1) eyes and 36 healthy eyes were enrolled. A complete ophthalmic evaluation and a Scheimpflug camera scan were performed in every eye included in the study. Tomographic parameters such as parameters from the front and back cornea, maximum keratometry reading (Kmax), corneal volume (CV), anterior chamber volume (ChV), anterior chamber depth (ACD), anterior chamber angle (AC angle), keratometric power deviation (KPD), maximum front elevation (Max FE), and maximum back elevation (Max BE), as well as pachymetric progression indices (PPI), Ambrosio relational thickness (ART), index of surface variance (ISV), index of vertical asymmetry (IVA), center keratoconus index (CKI), index of height asymmetry (IHA), index of height decentration (IHD), and radius minimum (RM) were collected and statistically compared between the two groups.Results: PPI, ART, ISV, IVA, CKI, IHA, IHD, and RM parameter values were significantly different (P<0.05) between the KC and healthy eyes. There were no significant differences in K mean and Q values of the frontal corneal parameters, as well as in Kmax, AC angle, RM, back, and front astigmatism, between stage 1 keratoconic and normal Caucasian eyes with steep cornea. All other parameters such as K mean and Q values of the back corneal parameters, Max FE, Max BE, ACD, ChV, and CV showed significant differences between the groups (P<0.05 for all). Conclusion: Scheimpflug imaging is able to detect corneal morphological differences between stage 1 KC eyes and healthy eyes with steep cornea, in Caucasians. Keywords: Scheimpflug camera, Scheimpflug measurements, keratoconus, corneal tomography, Ambrosio relational thickness
format	article
author	Huseynova T Abdulaliyeva F Lanza M
author_facet	Huseynova T Abdulaliyeva F Lanza M
author_sort	Huseynova T
title	Comparison of Scheimpflug imaging parameters between steep and keratoconic corneas of Caucasian eyes
title_short	Comparison of Scheimpflug imaging parameters between steep and keratoconic corneas of Caucasian eyes
title_full	Comparison of Scheimpflug imaging parameters between steep and keratoconic corneas of Caucasian eyes
title_fullStr	Comparison of Scheimpflug imaging parameters between steep and keratoconic corneas of Caucasian eyes
title_full_unstemmed	Comparison of Scheimpflug imaging parameters between steep and keratoconic corneas of Caucasian eyes
title_sort	comparison of scheimpflug imaging parameters between steep and keratoconic corneas of caucasian eyes
publisher	Dove Medical Press
publishDate	2016
url	https://doaj.org/article/13a9309170cc40e5b34176941513ffc2
work_keys_str_mv	AT huseynovat comparisonofscheimpflugimagingparametersbetweensteepandkeratoconiccorneasofcaucasianeyes AT abdulaliyevaf comparisonofscheimpflugimagingparametersbetweensteepandkeratoconiccorneasofcaucasianeyes AT lanzam comparisonofscheimpflugimagingparametersbetweensteepandkeratoconiccorneasofcaucasianeyes
_version_	1718403967783796736

Comparison of Scheimpflug imaging parameters between steep and keratoconic corneas of Caucasian eyes

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