Transmittance measurement of the in vivo human eye with a double-pass system

Autores
Sánchez, Roberto Francisco; de Paul Camacho, Anibal Gabriel; Burgos Fernandez, Francisco; Vilaseca, Meritxell; Pujol, Jaume; Issolio, Luis Alberto
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Purpose: To develop a methodology based on a double-pass system to obtain information about the transmittance of ocular media. Methods: The procedure consists of recording double-pass images at different powers of a laser diode of 780 nm and determining the scattering in an area between 25 35 arcmin of each image. The scattering showed linear behavior in respect to the irradiance of the laser, and the slope of the linear fit was proportional to the transmittance squared of the media evaluated. An artificial eye with different filters was tested first. Then, fifteen subjects with clear ocular media were divided into two groups: Ten subjects classified by the iris color were recruited for the measurements of an ocular transmittance index and the estimation of the transmittance (group A), and another five subjects were selected for measurements with neutral filters (group B). Results: The measurements performed in group A presented a mean transmittance of 42.95%. No differences in the transmittance were found between subjects with different iris color ( p = 0.154). Measurements in group B showed a good correlation (r = 0.959, p < 0.001) between the expected and the measured value for the transmittance. Conclusion: We proposed and evaluated a method to determine the transmittance of the eye in vivo using the double-pass system.
Fil: Sánchez, Roberto Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; Argentina
Fil: de Paul Camacho, Anibal Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; Argentina
Fil: Burgos Fernandez, Francisco. Universidad Politécnica de Catalunya; España
Fil: Vilaseca, Meritxell. Universidad Politécnica de Catalunya; España
Fil: Pujol, Jaume. Universidad Politécnica de Catalunya; España
Fil: Issolio, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Luminotecnia, Luz y Visión; Argentina
Materia
HUMAN EYE
DOUBLE-PASS
TRANSMITTANCE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/173930
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/173930
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Transmittance measurement of the in vivo human eye with a double-pass systemSánchez, Roberto Franciscode Paul Camacho, Anibal GabrielBurgos Fernandez, FranciscoVilaseca, MeritxellPujol, JaumeIssolio, Luis AlbertoHUMAN EYEDOUBLE-PASSTRANSMITTANCEhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Purpose: To develop a methodology based on a double-pass system to obtain information about the transmittance of ocular media. Methods: The procedure consists of recording double-pass images at different powers of a laser diode of 780 nm and determining the scattering in an area between 25 35 arcmin of each image. The scattering showed linear behavior in respect to the irradiance of the laser, and the slope of the linear fit was proportional to the transmittance squared of the media evaluated. An artificial eye with different filters was tested first. Then, fifteen subjects with clear ocular media were divided into two groups: Ten subjects classified by the iris color were recruited for the measurements of an ocular transmittance index and the estimation of the transmittance (group A), and another five subjects were selected for measurements with neutral filters (group B). Results: The measurements performed in group A presented a mean transmittance of 42.95%. No differences in the transmittance were found between subjects with different iris color ( p = 0.154). Measurements in group B showed a good correlation (r = 0.959, p < 0.001) between the expected and the measured value for the transmittance. Conclusion: We proposed and evaluated a method to determine the transmittance of the eye in vivo using the double-pass system.Fil: Sánchez, Roberto Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; ArgentinaFil: de Paul Camacho, Anibal Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; ArgentinaFil: Burgos Fernandez, Francisco. Universidad Politécnica de Catalunya; EspañaFil: Vilaseca, Meritxell. Universidad Politécnica de Catalunya; EspañaFil: Pujol, Jaume. Universidad Politécnica de Catalunya; EspañaFil: Issolio, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Luminotecnia, Luz y Visión; ArgentinaTechnical Univ Wroclaw2021-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/173930Sánchez, Roberto Francisco; de Paul Camacho, Anibal Gabriel; Burgos Fernandez, Francisco; Vilaseca, Meritxell; Pujol, Jaume; et al.; Transmittance measurement of the in vivo human eye with a double-pass system; Technical Univ Wroclaw; Optica Applicata; 51; 1; 4-2021; 1-210078-54661899-7015CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://opticaapplicata.pwr.edu.pl/article.php?id=2021100001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:00:43Zoai:ri.conicet.gov.ar:11336/173930instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:00:44.095CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Transmittance measurement of the in vivo human eye with a double-pass system
title Transmittance measurement of the in vivo human eye with a double-pass system
spellingShingle Transmittance measurement of the in vivo human eye with a double-pass system
Sánchez, Roberto Francisco
HUMAN EYE
DOUBLE-PASS
TRANSMITTANCE
title_short Transmittance measurement of the in vivo human eye with a double-pass system
title_full Transmittance measurement of the in vivo human eye with a double-pass system
title_fullStr Transmittance measurement of the in vivo human eye with a double-pass system
title_full_unstemmed Transmittance measurement of the in vivo human eye with a double-pass system
title_sort Transmittance measurement of the in vivo human eye with a double-pass system
dc.creator.none.fl_str_mv Sánchez, Roberto Francisco
de Paul Camacho, Anibal Gabriel
Burgos Fernandez, Francisco
Vilaseca, Meritxell
Pujol, Jaume
Issolio, Luis Alberto
author Sánchez, Roberto Francisco
author_facet Sánchez, Roberto Francisco
de Paul Camacho, Anibal Gabriel
Burgos Fernandez, Francisco
Vilaseca, Meritxell
Pujol, Jaume
Issolio, Luis Alberto
author_role author
author2 de Paul Camacho, Anibal Gabriel
Burgos Fernandez, Francisco
Vilaseca, Meritxell
Pujol, Jaume
Issolio, Luis Alberto
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv HUMAN EYE
DOUBLE-PASS
TRANSMITTANCE
topic HUMAN EYE
DOUBLE-PASS
TRANSMITTANCE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Purpose: To develop a methodology based on a double-pass system to obtain information about the transmittance of ocular media. Methods: The procedure consists of recording double-pass images at different powers of a laser diode of 780 nm and determining the scattering in an area between 25 35 arcmin of each image. The scattering showed linear behavior in respect to the irradiance of the laser, and the slope of the linear fit was proportional to the transmittance squared of the media evaluated. An artificial eye with different filters was tested first. Then, fifteen subjects with clear ocular media were divided into two groups: Ten subjects classified by the iris color were recruited for the measurements of an ocular transmittance index and the estimation of the transmittance (group A), and another five subjects were selected for measurements with neutral filters (group B). Results: The measurements performed in group A presented a mean transmittance of 42.95%. No differences in the transmittance were found between subjects with different iris color ( p = 0.154). Measurements in group B showed a good correlation (r = 0.959, p < 0.001) between the expected and the measured value for the transmittance. Conclusion: We proposed and evaluated a method to determine the transmittance of the eye in vivo using the double-pass system.
Fil: Sánchez, Roberto Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; Argentina
Fil: de Paul Camacho, Anibal Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; Argentina
Fil: Burgos Fernandez, Francisco. Universidad Politécnica de Catalunya; España
Fil: Vilaseca, Meritxell. Universidad Politécnica de Catalunya; España
Fil: Pujol, Jaume. Universidad Politécnica de Catalunya; España
Fil: Issolio, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Luminotecnia, Luz y Visión; Argentina
description Purpose: To develop a methodology based on a double-pass system to obtain information about the transmittance of ocular media. Methods: The procedure consists of recording double-pass images at different powers of a laser diode of 780 nm and determining the scattering in an area between 25 35 arcmin of each image. The scattering showed linear behavior in respect to the irradiance of the laser, and the slope of the linear fit was proportional to the transmittance squared of the media evaluated. An artificial eye with different filters was tested first. Then, fifteen subjects with clear ocular media were divided into two groups: Ten subjects classified by the iris color were recruited for the measurements of an ocular transmittance index and the estimation of the transmittance (group A), and another five subjects were selected for measurements with neutral filters (group B). Results: The measurements performed in group A presented a mean transmittance of 42.95%. No differences in the transmittance were found between subjects with different iris color ( p = 0.154). Measurements in group B showed a good correlation (r = 0.959, p < 0.001) between the expected and the measured value for the transmittance. Conclusion: We proposed and evaluated a method to determine the transmittance of the eye in vivo using the double-pass system.
publishDate 2021
dc.date.none.fl_str_mv 2021-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/173930
Sánchez, Roberto Francisco; de Paul Camacho, Anibal Gabriel; Burgos Fernandez, Francisco; Vilaseca, Meritxell; Pujol, Jaume; et al.; Transmittance measurement of the in vivo human eye with a double-pass system; Technical Univ Wroclaw; Optica Applicata; 51; 1; 4-2021; 1-21
0078-5466
1899-7015
CONICET Digital
CONICET
url http://hdl.handle.net/11336/173930
identifier_str_mv Sánchez, Roberto Francisco; de Paul Camacho, Anibal Gabriel; Burgos Fernandez, Francisco; Vilaseca, Meritxell; Pujol, Jaume; et al.; Transmittance measurement of the in vivo human eye with a double-pass system; Technical Univ Wroclaw; Optica Applicata; 51; 1; 4-2021; 1-21
0078-5466
1899-7015
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://opticaapplicata.pwr.edu.pl/article.php?id=2021100001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Technical Univ Wroclaw
publisher.none.fl_str_mv Technical Univ Wroclaw
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.48226

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