Multi-aspheric description of the myopic cornea after different refractive treatments and its correlation with corneal higher order aberrations
Autor(a) principal: | |
---|---|
Data de Publicação: | 2012 |
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/1822/22688 |
Resumo: | Background: To analyse the asphericity of the anterior corneal surface (ACS) for different diameters, and correlate those values with corneal higher order aberrations (cHOA) before and after myopic treatments with corneal refractive therapy (CRT) for orthokeratology and customized (CL) and standard laser (SL) assisted in situ keratomileusis (LASIK). Setting: Clínica Oftalmológica NovoVisión, Madrid, Spain. Methods: The right eyes of 81 patients (27 in each treatment group), with a mean age of 29.94 ± 7.5 years, were analysed. Corneal videokeratographic data were used to obtain corneal asphericity (Q) for different corneal diameters from 3 to 8 mm and cHOA root mean square (RMS) obtained from Zernike polynomials for a pupil diameter of 6 mm. Results: There were statistically significant differences in asphericity values calculated at different corneal diameters for different refractive treatments and their changes. The difference between asphericity at 3 and 8 mm reference diameters showed statistically significant correlations with spherical-like cHOA that was also significantly increased after all procedures. Conclusions: The shift in corneal asphericity and the differences among different treatment techniques are more evident for the smaller reference diameters. These differences can be much reduced or even masked for a peripheral reference point at 4 mm from centre, which is used by some corneal topographers. |
id |
RCAP_83ceb02983ad03249c2b218106520fa8 |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/22688 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Multi-aspheric description of the myopic cornea after different refractive treatments and its correlation with corneal higher order aberrationsOrthokeratologyLASIKLaser assisted in situKeratomileusisCorneal asphericityCorneal aberrationsCorneal refractive therapyLaser assisted in situ keratomileusis (LASIK)Background: To analyse the asphericity of the anterior corneal surface (ACS) for different diameters, and correlate those values with corneal higher order aberrations (cHOA) before and after myopic treatments with corneal refractive therapy (CRT) for orthokeratology and customized (CL) and standard laser (SL) assisted in situ keratomileusis (LASIK). Setting: Clínica Oftalmológica NovoVisión, Madrid, Spain. Methods: The right eyes of 81 patients (27 in each treatment group), with a mean age of 29.94 ± 7.5 years, were analysed. Corneal videokeratographic data were used to obtain corneal asphericity (Q) for different corneal diameters from 3 to 8 mm and cHOA root mean square (RMS) obtained from Zernike polynomials for a pupil diameter of 6 mm. Results: There were statistically significant differences in asphericity values calculated at different corneal diameters for different refractive treatments and their changes. The difference between asphericity at 3 and 8 mm reference diameters showed statistically significant correlations with spherical-like cHOA that was also significantly increased after all procedures. Conclusions: The shift in corneal asphericity and the differences among different treatment techniques are more evident for the smaller reference diameters. These differences can be much reduced or even masked for a peripheral reference point at 4 mm from centre, which is used by some corneal topographers.MES -Ministry of Education and Science(BD/61768/2009)ElsevierUniversidade do MinhoQueirós, A.Villa-Collar, CésarJorge, JorgeGutiérrez, Ángel RamónGonzález-Méijome, José Manuel20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/22688engQueirós A; Villa-Collar Cesár; Jorge J; Gutiérrez AR; González-Méijome JM. Multi-aspheric description of the myopic cornea after different refractive treatments and its correlation with corneal higher order aberrations, Journal of Optometry, 5, 4, 171-181, 2012.1888-429610.1016/j.optom.2012.08.002info: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:RCAAP2023-07-21T12:30:54Zoai:repositorium.sdum.uminho.pt:1822/22688Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:26:08.795307Repositório 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 |
Multi-aspheric description of the myopic cornea after different refractive treatments and its correlation with corneal higher order aberrations |
title |
Multi-aspheric description of the myopic cornea after different refractive treatments and its correlation with corneal higher order aberrations |
spellingShingle |
Multi-aspheric description of the myopic cornea after different refractive treatments and its correlation with corneal higher order aberrations Queirós, A. Orthokeratology LASIK Laser assisted in situ Keratomileusis Corneal asphericity Corneal aberrations Corneal refractive therapy Laser assisted in situ keratomileusis (LASIK) |
title_short |
Multi-aspheric description of the myopic cornea after different refractive treatments and its correlation with corneal higher order aberrations |
title_full |
Multi-aspheric description of the myopic cornea after different refractive treatments and its correlation with corneal higher order aberrations |
title_fullStr |
Multi-aspheric description of the myopic cornea after different refractive treatments and its correlation with corneal higher order aberrations |
title_full_unstemmed |
Multi-aspheric description of the myopic cornea after different refractive treatments and its correlation with corneal higher order aberrations |
title_sort |
Multi-aspheric description of the myopic cornea after different refractive treatments and its correlation with corneal higher order aberrations |
author |
Queirós, A. |
author_facet |
Queirós, A. Villa-Collar, César Jorge, Jorge Gutiérrez, Ángel Ramón González-Méijome, José Manuel |
author_role |
author |
author2 |
Villa-Collar, César Jorge, Jorge Gutiérrez, Ángel Ramón González-Méijome, José Manuel |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Queirós, A. Villa-Collar, César Jorge, Jorge Gutiérrez, Ángel Ramón González-Méijome, José Manuel |
dc.subject.por.fl_str_mv |
Orthokeratology LASIK Laser assisted in situ Keratomileusis Corneal asphericity Corneal aberrations Corneal refractive therapy Laser assisted in situ keratomileusis (LASIK) |
topic |
Orthokeratology LASIK Laser assisted in situ Keratomileusis Corneal asphericity Corneal aberrations Corneal refractive therapy Laser assisted in situ keratomileusis (LASIK) |
description |
Background: To analyse the asphericity of the anterior corneal surface (ACS) for different diameters, and correlate those values with corneal higher order aberrations (cHOA) before and after myopic treatments with corneal refractive therapy (CRT) for orthokeratology and customized (CL) and standard laser (SL) assisted in situ keratomileusis (LASIK). Setting: Clínica Oftalmológica NovoVisión, Madrid, Spain. Methods: The right eyes of 81 patients (27 in each treatment group), with a mean age of 29.94 ± 7.5 years, were analysed. Corneal videokeratographic data were used to obtain corneal asphericity (Q) for different corneal diameters from 3 to 8 mm and cHOA root mean square (RMS) obtained from Zernike polynomials for a pupil diameter of 6 mm. Results: There were statistically significant differences in asphericity values calculated at different corneal diameters for different refractive treatments and their changes. The difference between asphericity at 3 and 8 mm reference diameters showed statistically significant correlations with spherical-like cHOA that was also significantly increased after all procedures. Conclusions: The shift in corneal asphericity and the differences among different treatment techniques are more evident for the smaller reference diameters. These differences can be much reduced or even masked for a peripheral reference point at 4 mm from centre, which is used by some corneal topographers. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012 2012-01-01T00:00:00Z |
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/1822/22688 |
url |
http://hdl.handle.net/1822/22688 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Queirós A; Villa-Collar Cesár; Jorge J; Gutiérrez AR; González-Méijome JM. Multi-aspheric description of the myopic cornea after different refractive treatments and its correlation with corneal higher order aberrations, Journal of Optometry, 5, 4, 171-181, 2012. 1888-4296 10.1016/j.optom.2012.08.002 |
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 |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
instname_str |
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 |
|
_version_ |
1799132747735760896 |