Surface roughness and refractive index changes in contact lens induced by lens care systems
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/31209 |
Resumo: | Purpose: The aim of this study was to analyze the influence of different lens care systems in surface roughness and refractive index (RI) of contact lenses (CL). This information provides us with a better understanding of how care solutions affect CL materials. Methods: Several CL and three commercially available and appropriate lens care solutions were used (two polyhexamethylene biguanide and one hydrogen peroxide care systems). Lenses were immersed in the lens care systems, and then measurements with CLR 12-70 digital automated refractometer and atomic force microscopy analysis on Tapping mode were recorded. The measurements were performed before and after the lenses were immersed in each care solution. Results: Significant changes were observed on the CL materials when exposed to lens care systems. All the materials changed, to a greater or lesser extent, their roughness and RI, after being immersed in the different solutions. The water content varied between 0% (Nelfilcon A in ReNu Multiplus, Senofilcon A in AOSEPT Plus, and Methafilcon A in Solocare Aqua) and 4.1% (Hilafilcon B in Solocare Aqua) The higher change in roughness was obtained with ReNu Multiplus in the lens Comfilcon A (with an increase of 27.2 nm) and Senofilcon A (with an increase of 16.7 nm). Conclusion: This study suggests that lens care systems play an important role in surface roughness and RI of CL. |
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Surface roughness and refractive index changes in contact lens induced by lens care systemsContact lensesLens careSurface topographyRoughnessRefractive indexCiências Naturais::Ciências FísicasScience & TechnologyPurpose: The aim of this study was to analyze the influence of different lens care systems in surface roughness and refractive index (RI) of contact lenses (CL). This information provides us with a better understanding of how care solutions affect CL materials. Methods: Several CL and three commercially available and appropriate lens care solutions were used (two polyhexamethylene biguanide and one hydrogen peroxide care systems). Lenses were immersed in the lens care systems, and then measurements with CLR 12-70 digital automated refractometer and atomic force microscopy analysis on Tapping mode were recorded. The measurements were performed before and after the lenses were immersed in each care solution. Results: Significant changes were observed on the CL materials when exposed to lens care systems. All the materials changed, to a greater or lesser extent, their roughness and RI, after being immersed in the different solutions. The water content varied between 0% (Nelfilcon A in ReNu Multiplus, Senofilcon A in AOSEPT Plus, and Methafilcon A in Solocare Aqua) and 4.1% (Hilafilcon B in Solocare Aqua) The higher change in roughness was obtained with ReNu Multiplus in the lens Comfilcon A (with an increase of 27.2 nm) and Senofilcon A (with an increase of 16.7 nm). Conclusion: This study suggests that lens care systems play an important role in surface roughness and RI of CL.Fundação para a Ciência e a Tecnologia (FCT)LwwUniversidade do MinhoLira, MadalenaFranco, SandraVazquez-Dorrio, José B.Oliveira, M. ElisabeteCosta, Manuel F. M.2014-052014-05-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/31209eng1542-232110.1097/ICL.000000000000002324756118info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:36:50Zoai:repositorium.sdum.uminho.pt:1822/31209Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:33:01.559348Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Surface roughness and refractive index changes in contact lens induced by lens care systems |
title |
Surface roughness and refractive index changes in contact lens induced by lens care systems |
spellingShingle |
Surface roughness and refractive index changes in contact lens induced by lens care systems Lira, Madalena Contact lenses Lens care Surface topography Roughness Refractive index Ciências Naturais::Ciências Físicas Science & Technology |
title_short |
Surface roughness and refractive index changes in contact lens induced by lens care systems |
title_full |
Surface roughness and refractive index changes in contact lens induced by lens care systems |
title_fullStr |
Surface roughness and refractive index changes in contact lens induced by lens care systems |
title_full_unstemmed |
Surface roughness and refractive index changes in contact lens induced by lens care systems |
title_sort |
Surface roughness and refractive index changes in contact lens induced by lens care systems |
author |
Lira, Madalena |
author_facet |
Lira, Madalena Franco, Sandra Vazquez-Dorrio, José B. Oliveira, M. Elisabete Costa, Manuel F. M. |
author_role |
author |
author2 |
Franco, Sandra Vazquez-Dorrio, José B. Oliveira, M. Elisabete Costa, Manuel F. M. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Lira, Madalena Franco, Sandra Vazquez-Dorrio, José B. Oliveira, M. Elisabete Costa, Manuel F. M. |
dc.subject.por.fl_str_mv |
Contact lenses Lens care Surface topography Roughness Refractive index Ciências Naturais::Ciências Físicas Science & Technology |
topic |
Contact lenses Lens care Surface topography Roughness Refractive index Ciências Naturais::Ciências Físicas Science & Technology |
description |
Purpose: The aim of this study was to analyze the influence of different lens care systems in surface roughness and refractive index (RI) of contact lenses (CL). This information provides us with a better understanding of how care solutions affect CL materials. Methods: Several CL and three commercially available and appropriate lens care solutions were used (two polyhexamethylene biguanide and one hydrogen peroxide care systems). Lenses were immersed in the lens care systems, and then measurements with CLR 12-70 digital automated refractometer and atomic force microscopy analysis on Tapping mode were recorded. The measurements were performed before and after the lenses were immersed in each care solution. Results: Significant changes were observed on the CL materials when exposed to lens care systems. All the materials changed, to a greater or lesser extent, their roughness and RI, after being immersed in the different solutions. The water content varied between 0% (Nelfilcon A in ReNu Multiplus, Senofilcon A in AOSEPT Plus, and Methafilcon A in Solocare Aqua) and 4.1% (Hilafilcon B in Solocare Aqua) The higher change in roughness was obtained with ReNu Multiplus in the lens Comfilcon A (with an increase of 27.2 nm) and Senofilcon A (with an increase of 16.7 nm). Conclusion: This study suggests that lens care systems play an important role in surface roughness and RI of CL. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-05 2014-05-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/31209 |
url |
http://hdl.handle.net/1822/31209 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1542-2321 10.1097/ICL.0000000000000023 24756118 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Lww |
publisher.none.fl_str_mv |
Lww |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799132846533640192 |