Effect of sampling on real ocular aberration measurements

14 pages, 7 figures.-- OCIS codes: 330.4300, 330.5370, 330.7310.-- PMCID: PMC2483833.

Detalhes bibliográficos
Autores: Llorente, Lourdes, Marcos, Susana, Dorronsoro, Carlos, Burns, Stephen A.
Tipo de documento: artigo
Data de publicação:2007
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/8578
Acesso em linha:http://hdl.handle.net/10261/8578
Access Level:Acceso aberto
Palavra-chave:[OCIS] Vision, color, and visual optics: Vision system - noninvasive assessment
[OCIS] Vision, color, and visual optics: Physiological optics
[OCIS] Vision, color, and visual optics: Vision
LRT
Aberrometry
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spelling Effect of sampling on real ocular aberration measurementsLlorente, LourdesMarcos, SusanaDorronsoro, CarlosBurns, Stephen A.[OCIS] Vision, color, and visual optics: Vision system - noninvasive assessment[OCIS] Vision, color, and visual optics: Physiological optics[OCIS] Vision, color, and visual optics: VisionLRTAberrometry14 pages, 7 figures.-- OCIS codes: 330.4300, 330.5370, 330.7310.-- PMCID: PMC2483833.The minimum number of samples necessary to fully characterize the aberration pattern of the eye is a question under debate in the clinical as well as the scientific community. We performed repeated measurements of ocular aberrations in 12 healthy nonsurgical human eyes and in 3 artificial eyes, using different sampling patterns (hexagonal, circular, and rectangular with 19 to 177 samples, and 3 radial patterns with 49 sample coordinates corresponding to zeros of the Albrecht, Jacobi, and Legendre functions). For each measurement set we computed two different metrics based on the root-mean-square (RMS) of difference maps (RMS_Diff) and the proportional change in the wavefront (W%). These metrics are used to compare wavefront estimates as well as to summarize results across eyes. We used computer simulations to extend our results to "abnormal eyes" (keratoconic, post-LASIK, and post–radial keratotomy eyes). We found that the spatial distribution of the samples can be more important than the number of samples for both our measured as well as our simulated "abnormal" eyes. Experimentally, we did not find large differences across patterns except, as expected, for undersampled patterns.This research was supported in part by National Institutes of Health, USA, grant EY04395 (Burns); Ministerio de Educación y Ciencia, Spain, grant FIS2005-04382; and the European Young Investigators (EURYI) Award, EUROHORCs-ESF (Marcos).Peer reviewedOptical Society of America200820082007info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_65014876802 bytesapplication/pdfhttp://hdl.handle.net/10261/8578reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1364/JOSAA.24.002783info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/85782026-05-22T06:33:51Z
dc.title.none.fl_str_mv Effect of sampling on real ocular aberration measurements
title Effect of sampling on real ocular aberration measurements
spellingShingle Effect of sampling on real ocular aberration measurements
Llorente, Lourdes
[OCIS] Vision, color, and visual optics: Vision system - noninvasive assessment
[OCIS] Vision, color, and visual optics: Physiological optics
[OCIS] Vision, color, and visual optics: Vision
LRT
Aberrometry
title_short Effect of sampling on real ocular aberration measurements
title_full Effect of sampling on real ocular aberration measurements
title_fullStr Effect of sampling on real ocular aberration measurements
title_full_unstemmed Effect of sampling on real ocular aberration measurements
title_sort Effect of sampling on real ocular aberration measurements
dc.creator.none.fl_str_mv Llorente, Lourdes
Marcos, Susana
Dorronsoro, Carlos
Burns, Stephen A.
author Llorente, Lourdes
author_facet Llorente, Lourdes
Marcos, Susana
Dorronsoro, Carlos
Burns, Stephen A.
author_role author
author2 Marcos, Susana
Dorronsoro, Carlos
Burns, Stephen A.
author2_role author
author
author
dc.subject.none.fl_str_mv [OCIS] Vision, color, and visual optics: Vision system - noninvasive assessment
[OCIS] Vision, color, and visual optics: Physiological optics
[OCIS] Vision, color, and visual optics: Vision
LRT
Aberrometry
topic [OCIS] Vision, color, and visual optics: Vision system - noninvasive assessment
[OCIS] Vision, color, and visual optics: Physiological optics
[OCIS] Vision, color, and visual optics: Vision
LRT
Aberrometry
description 14 pages, 7 figures.-- OCIS codes: 330.4300, 330.5370, 330.7310.-- PMCID: PMC2483833.
publishDate 2007
dc.date.none.fl_str_mv 2007
2008
2008
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/8578
url http://hdl.handle.net/10261/8578
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1364/JOSAA.24.002783
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 4876802 bytes
application/pdf
dc.publisher.none.fl_str_mv Optical Society of America
publisher.none.fl_str_mv Optical Society of America
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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