Application of different Scheimpflug-based lens densitometry methods in phacodynamics prediction

Fernando Faria-Correia,1–5 Bernardo T Lopes,5,6 Isaac C Ramos,5,6 Tiago Monteiro,1,2 Nuno Franqueira,1 Renato Ambrósio Jr5–8 1Ophthalmology Department, Hospital de Braga, Braga, Portugal; 2Life and Health Sciences Research Institute (ICVS), School of Health Sciences,...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Faria-Correia F, Lopes BT, Ramos IC, Monteiro T, Franqueira N, Ambrósio R Jr
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2016
Materias:	- Cataract - Phacoemulsification - Scheimpflug - Lens density Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/bbb8d9385ae44432928540f86c5e1b8f
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:bbb8d9385ae44432928540f86c5e1b8f
record_format	dspace
spelling	oai:doaj.org-article:bbb8d9385ae44432928540f86c5e1b8f2021-12-02T07:15:54ZApplication of different Scheimpflug-based lens densitometry methods in phacodynamics prediction1177-5483https://doaj.org/article/bbb8d9385ae44432928540f86c5e1b8f2016-04-01T00:00:00Zhttps://www.dovepress.com/application-of-different-scheimpflug-based-lens-densitometry-methods-i-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Fernando Faria-Correia,1–5 Bernardo T Lopes,5,6 Isaac C Ramos,5,6 Tiago Monteiro,1,2 Nuno Franqueira,1 Renato Ambrósio Jr5–8 1Ophthalmology Department, Hospital de Braga, Braga, Portugal; 2Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal; 3ICVS/3B’s - PT Government Associate Laboratory, Braga, Portugal; 4ICVS/3B’s - PT Government Associate Laboratory, Guimarães, Portugal; 5Rio de Janeiro Corneal Tomography and Biomechanics Study Group, Rio de Janeiro, Brazil; 6Instituto de Olhos Renato Ambrósio, Rio de Janeiro, Brazil; 7VisareRio, Rio de Janeiro, Brazil; 8Department of Ophthalmology and Visual Sciences, Federal University of São Paulo, São Paulo, Brazil Purpose: To evaluate the correlations between preoperative Scheimpflug-based lens densitometry metrics and phacodynamics. Methods: The Lens Opacities Classification System III (LOCS III) was used to grade nuclear opalescence (NO), along with different methods of lens densitometry evaluation (absolute scale from 0% to 100%): three-dimensional (3D), linear, and region of interest (ROI) modes. Cumulative dissipated energy (CDE) and total ultrasound (US) time were recorded and correlated with the different methods of cataract grading. Significant correlations were evaluated using Pearson or Spearman correlation coefficients according to data normality. Results: A positive correlation was detected between the NO score and the average density and the maximum density derived from the 3D mode (r=0.624, P<0.001; r=0.619, P<0.001, respectively) and the ROI mode (r=0.600, P<0.001; r=0.642, P<0.001, respectively). Regarding the linear mode, only the average density parameter presented a significant relationship with the NO score (r=0.569, P<0.001). The 3D-derived average density and maximum density were positively correlated with CDE (rho =0.682, P<0.001; rho =0.683, P<0.001, respectively) and total US time (rho =0.631 and rho =0.668, respectively). There was a linear relationship between the average density and maximum density of the ROI mode and CDE (rho =0.686, P<0.001; rho =0.598, P<0.001, respectively) and total US time (rho =0.642 and rho =0.644, respectively). The average density was the only parameter derived from the linear mode that showed a significant correlation with CDE (rho =0.522, P<0.001) and total US time (rho =0.450, P<0.001). Conclusion: Specific Scheimpflug-derived densitometric parameters of the nucleus correlated with phacoemulsification parameters. The use of the appropriate densitometry approach can predict more efficiently the phacodynamics. Keywords: cataract, phacoemulsification, scheimpflug, densitometryFaria-Correia FLopes BTRamos ICMonteiro TFranqueira NAmbrósio R JrDove Medical Pressarticle- Cataract - Phacoemulsification - Scheimpflug - Lens densityOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2016, Iss Issue 1, Pp 609-615 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	- Cataract - Phacoemulsification - Scheimpflug - Lens density Ophthalmology RE1-994
spellingShingle	- Cataract - Phacoemulsification - Scheimpflug - Lens density Ophthalmology RE1-994 Faria-Correia F Lopes BT Ramos IC Monteiro T Franqueira N Ambrósio R Jr Application of different Scheimpflug-based lens densitometry methods in phacodynamics prediction
description	Fernando Faria-Correia,1–5 Bernardo T Lopes,5,6 Isaac C Ramos,5,6 Tiago Monteiro,1,2 Nuno Franqueira,1 Renato Ambrósio Jr5–8 1Ophthalmology Department, Hospital de Braga, Braga, Portugal; 2Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal; 3ICVS/3B’s - PT Government Associate Laboratory, Braga, Portugal; 4ICVS/3B’s - PT Government Associate Laboratory, Guimarães, Portugal; 5Rio de Janeiro Corneal Tomography and Biomechanics Study Group, Rio de Janeiro, Brazil; 6Instituto de Olhos Renato Ambrósio, Rio de Janeiro, Brazil; 7VisareRio, Rio de Janeiro, Brazil; 8Department of Ophthalmology and Visual Sciences, Federal University of São Paulo, São Paulo, Brazil Purpose: To evaluate the correlations between preoperative Scheimpflug-based lens densitometry metrics and phacodynamics. Methods: The Lens Opacities Classification System III (LOCS III) was used to grade nuclear opalescence (NO), along with different methods of lens densitometry evaluation (absolute scale from 0% to 100%): three-dimensional (3D), linear, and region of interest (ROI) modes. Cumulative dissipated energy (CDE) and total ultrasound (US) time were recorded and correlated with the different methods of cataract grading. Significant correlations were evaluated using Pearson or Spearman correlation coefficients according to data normality. Results: A positive correlation was detected between the NO score and the average density and the maximum density derived from the 3D mode (r=0.624, P<0.001; r=0.619, P<0.001, respectively) and the ROI mode (r=0.600, P<0.001; r=0.642, P<0.001, respectively). Regarding the linear mode, only the average density parameter presented a significant relationship with the NO score (r=0.569, P<0.001). The 3D-derived average density and maximum density were positively correlated with CDE (rho =0.682, P<0.001; rho =0.683, P<0.001, respectively) and total US time (rho =0.631 and rho =0.668, respectively). There was a linear relationship between the average density and maximum density of the ROI mode and CDE (rho =0.686, P<0.001; rho =0.598, P<0.001, respectively) and total US time (rho =0.642 and rho =0.644, respectively). The average density was the only parameter derived from the linear mode that showed a significant correlation with CDE (rho =0.522, P<0.001) and total US time (rho =0.450, P<0.001). Conclusion: Specific Scheimpflug-derived densitometric parameters of the nucleus correlated with phacoemulsification parameters. The use of the appropriate densitometry approach can predict more efficiently the phacodynamics. Keywords: cataract, phacoemulsification, scheimpflug, densitometry
format	article
author	Faria-Correia F Lopes BT Ramos IC Monteiro T Franqueira N Ambrósio R Jr
author_facet	Faria-Correia F Lopes BT Ramos IC Monteiro T Franqueira N Ambrósio R Jr
author_sort	Faria-Correia F
title	Application of different Scheimpflug-based lens densitometry methods in phacodynamics prediction
title_short	Application of different Scheimpflug-based lens densitometry methods in phacodynamics prediction
title_full	Application of different Scheimpflug-based lens densitometry methods in phacodynamics prediction
title_fullStr	Application of different Scheimpflug-based lens densitometry methods in phacodynamics prediction
title_full_unstemmed	Application of different Scheimpflug-based lens densitometry methods in phacodynamics prediction
title_sort	application of different scheimpflug-based lens densitometry methods in phacodynamics prediction
publisher	Dove Medical Press
publishDate	2016
url	https://doaj.org/article/bbb8d9385ae44432928540f86c5e1b8f
work_keys_str_mv	AT fariacorreiaf applicationofdifferentscheimpflugbasedlensdensitometrymethodsinphacodynamicsprediction AT lopesbt applicationofdifferentscheimpflugbasedlensdensitometrymethodsinphacodynamicsprediction AT ramosic applicationofdifferentscheimpflugbasedlensdensitometrymethodsinphacodynamicsprediction AT monteirot applicationofdifferentscheimpflugbasedlensdensitometrymethodsinphacodynamicsprediction AT franqueiran applicationofdifferentscheimpflugbasedlensdensitometrymethodsinphacodynamicsprediction AT ambrosiorjr applicationofdifferentscheimpflugbasedlensdensitometrymethodsinphacodynamicsprediction
_version_	1718399538049318912

Application of different Scheimpflug-based lens densitometry methods in phacodynamics prediction

Ejemplares similares