Comparison of Biometry Measurements Using Standard Partial Coherence Interferometry versus New Scheimpflug Tomography with Integrated Axial Length Capability

Jorge Selem Haddad,1,2 Eliza Barnwell,1 Karolinne Maia Rocha,1 Renato Ambrosio Jr,2,3 George O Waring IV4 1Storm Eye Institute, Medical University of South Carolina, Charleston, SC, USA; 2Universidade Federal de São Paulo, São Paulo, Brazil; 3Universidade Federal do Estado do R...

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Autores principales:	Haddad JS, Barnwell E, Rocha KM, Ambrosio Jr R, Waring IV GO
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2020
Materias:	anterior chamber depth axial length biometry iolmaster 500 partial coherence interferometry pentacam axl Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/a2f6d2ff932c4b9eb5a3edee6f061776
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spelling	oai:doaj.org-article:a2f6d2ff932c4b9eb5a3edee6f0617762021-12-02T12:12:54ZComparison of Biometry Measurements Using Standard Partial Coherence Interferometry versus New Scheimpflug Tomography with Integrated Axial Length Capability1177-5483https://doaj.org/article/a2f6d2ff932c4b9eb5a3edee6f0617762020-02-01T00:00:00Zhttps://www.dovepress.com/comparison-of-biometry-measurements-using-standard-partial-coherence-i-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Jorge Selem Haddad,1,2 Eliza Barnwell,1 Karolinne Maia Rocha,1 Renato Ambrosio Jr,2,3 George O Waring IV4 1Storm Eye Institute, Medical University of South Carolina, Charleston, SC, USA; 2Universidade Federal de São Paulo, São Paulo, Brazil; 3Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Brazil; 4Waring Vision Institute, Mt. Pleasant, SC, USACorrespondence: Jorge Selem HaddadStorm Eye Institute, Medical University of South Carolina, 167 Ashley Ave, Charleston, SC 29425, USATel +1 843 327 7934Email jshaddad2@hotmail.comPurpose: To compare biometry measurements obtained by a partial interferometer biometer (IOLMaster 500) to the new Scheimpflug tomography with an integrated axial length biometer module (Pentacam AXL).Patients and Methods: Cataract patients who underwent biometric measurements with the IOL Master 500 and the Pentacam AXL from July to November 2017 were enrolled in this study. Comparisons were performed for axial length (AL), keratometry (K), and anterior chamber depth (ACD). The Pearson correlation coefficient and the 95% limits of agreement (LoA) were calculated. Paired Student’s t-tests and Bland-Altman plots were used to assess the differences between devices.Results: One hundred and sixty-six eyes of 92 patients were analyzed. There were no statistically significant differences in AL (p=0.558) or flat K (p=0.196) values between the IOL Master 500 and Pentacam AXL measurements. Statistically significant differences were found between the two devices with respect to steep K, ACD, and mean K measurements (p< 0.001).Conclusion: Both devices provided similar measurements of AL and flat K, though there were statistically significant differences in ACD, steep K, and mean K measurements.Keywords: anterior chamber depth, axial length, biometry, IOLMaster 500, partial coherence interferometry, pentacam AXLHaddad JSBarnwell ERocha KMAmbrosio Jr RWaring IV GODove Medical Pressarticleanterior chamber depthaxial lengthbiometryiolmaster 500partial coherence interferometrypentacam axlOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 14, Pp 353-358 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	anterior chamber depth axial length biometry iolmaster 500 partial coherence interferometry pentacam axl Ophthalmology RE1-994
spellingShingle	anterior chamber depth axial length biometry iolmaster 500 partial coherence interferometry pentacam axl Ophthalmology RE1-994 Haddad JS Barnwell E Rocha KM Ambrosio Jr R Waring IV GO Comparison of Biometry Measurements Using Standard Partial Coherence Interferometry versus New Scheimpflug Tomography with Integrated Axial Length Capability
description	Jorge Selem Haddad,1,2 Eliza Barnwell,1 Karolinne Maia Rocha,1 Renato Ambrosio Jr,2,3 George O Waring IV4 1Storm Eye Institute, Medical University of South Carolina, Charleston, SC, USA; 2Universidade Federal de São Paulo, São Paulo, Brazil; 3Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Brazil; 4Waring Vision Institute, Mt. Pleasant, SC, USACorrespondence: Jorge Selem HaddadStorm Eye Institute, Medical University of South Carolina, 167 Ashley Ave, Charleston, SC 29425, USATel +1 843 327 7934Email jshaddad2@hotmail.comPurpose: To compare biometry measurements obtained by a partial interferometer biometer (IOLMaster 500) to the new Scheimpflug tomography with an integrated axial length biometer module (Pentacam AXL).Patients and Methods: Cataract patients who underwent biometric measurements with the IOL Master 500 and the Pentacam AXL from July to November 2017 were enrolled in this study. Comparisons were performed for axial length (AL), keratometry (K), and anterior chamber depth (ACD). The Pearson correlation coefficient and the 95% limits of agreement (LoA) were calculated. Paired Student’s t-tests and Bland-Altman plots were used to assess the differences between devices.Results: One hundred and sixty-six eyes of 92 patients were analyzed. There were no statistically significant differences in AL (p=0.558) or flat K (p=0.196) values between the IOL Master 500 and Pentacam AXL measurements. Statistically significant differences were found between the two devices with respect to steep K, ACD, and mean K measurements (p< 0.001).Conclusion: Both devices provided similar measurements of AL and flat K, though there were statistically significant differences in ACD, steep K, and mean K measurements.Keywords: anterior chamber depth, axial length, biometry, IOLMaster 500, partial coherence interferometry, pentacam AXL
format	article
author	Haddad JS Barnwell E Rocha KM Ambrosio Jr R Waring IV GO
author_facet	Haddad JS Barnwell E Rocha KM Ambrosio Jr R Waring IV GO
author_sort	Haddad JS
title	Comparison of Biometry Measurements Using Standard Partial Coherence Interferometry versus New Scheimpflug Tomography with Integrated Axial Length Capability
title_short	Comparison of Biometry Measurements Using Standard Partial Coherence Interferometry versus New Scheimpflug Tomography with Integrated Axial Length Capability
title_full	Comparison of Biometry Measurements Using Standard Partial Coherence Interferometry versus New Scheimpflug Tomography with Integrated Axial Length Capability
title_fullStr	Comparison of Biometry Measurements Using Standard Partial Coherence Interferometry versus New Scheimpflug Tomography with Integrated Axial Length Capability
title_full_unstemmed	Comparison of Biometry Measurements Using Standard Partial Coherence Interferometry versus New Scheimpflug Tomography with Integrated Axial Length Capability
title_sort	comparison of biometry measurements using standard partial coherence interferometry versus new scheimpflug tomography with integrated axial length capability
publisher	Dove Medical Press
publishDate	2020
url	https://doaj.org/article/a2f6d2ff932c4b9eb5a3edee6f061776
work_keys_str_mv	AT haddadjs comparisonofbiometrymeasurementsusingstandardpartialcoherenceinterferometryversusnewscheimpflugtomographywithintegratedaxiallengthcapability AT barnwelle comparisonofbiometrymeasurementsusingstandardpartialcoherenceinterferometryversusnewscheimpflugtomographywithintegratedaxiallengthcapability AT rochakm comparisonofbiometrymeasurementsusingstandardpartialcoherenceinterferometryversusnewscheimpflugtomographywithintegratedaxiallengthcapability AT ambrosiojrr comparisonofbiometrymeasurementsusingstandardpartialcoherenceinterferometryversusnewscheimpflugtomographywithintegratedaxiallengthcapability AT waringivgo comparisonofbiometrymeasurementsusingstandardpartialcoherenceinterferometryversusnewscheimpflugtomographywithintegratedaxiallengthcapability
_version_	1718394591969804288

Comparison of Biometry Measurements Using Standard Partial Coherence Interferometry versus New Scheimpflug Tomography with Integrated Axial Length Capability

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