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dc.contributor.authorArmengol Cebrian, Jesús
dc.contributor.authorGarzon, Nuria
dc.contributor.authorVega Lerín, Fidel
dc.contributor.authorAltemir Gómez, I.
dc.contributor.authorMillán Garcia-Varela, M. Sagrario
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Òptica i Optometria
dc.date.accessioned2020-11-06T08:51:26Z
dc.date.available2020-11-06T08:51:26Z
dc.date.issued2020-05-01
dc.identifier.citationArmengol, J. [et al.]. Equivalence of two optical quality metrics to predict the visual acuity of multifocal pseudophakic patients. "Biomedical optics express", 1 Maig 2020, vol. 11, núm. 5, p. 2818-2829.
dc.identifier.issn2156-7085
dc.identifier.urihttp://hdl.handle.net/2117/331547
dc.description.abstractThis article studies the relationship between two metrics, the area under the modulation transfer function (MTFa) and the energy efficiency (EE), and their ability to predict the visual quality of patients implanted with multifocal intraocular lenses (IOLs). The optical quality of IOLs is assessed in vitro using two metrics, the MTFa and EE. We measured them for three different multifocal IOLs with parabolic phase profile using image formation, through-focus (TF) scanning, three R, G, B wavelengths, and two pupils. We analyzed the correlation between MTFa and EE. In parallel, clinical defocus curves of visual acuity (VA) were measured and averaged from sets of patients implanted with the same IOLs. An excellent linear correlation was found between the MTFa and EE for the considered IOLs, wavelengths and pupils (R2 > 0.9). We computed the polychromatic TF-MTFa, TF-EE, and derived mathematical relationships between each metrics and clinical average VA. MTFa and EE proved to be equivalent metrics to characterize the optical quality of the studied multifocal IOLs and also in terms of clinical VA predictability.
dc.description.sponsorshipMinisterio de Economía y Competitividad y fondos Feder (DPI2016-76019-R).
dc.format.extent12 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Ciències de la visió
dc.subject.lcshVision
dc.subject.lcshIntraocular lenses
dc.subject.lcshVisual acuity
dc.titleEquivalence of two optical quality metrics to predict the visual acuity of multifocal pseudophakic patients
dc.typeArticle
dc.subject.lemacVisió
dc.subject.lemacLents intraoculars
dc.subject.lemacAgudesa visual
dc.contributor.groupUniversitat Politècnica de Catalunya. GOAPI - Grup d'Òptica Aplicada i Processament d'Imatge
dc.identifier.doi10.1364/BOE.388531
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.osapublishing.org/boe/abstract.cfm?uri=boe-11-5-2818
dc.rights.accessOpen Access
local.identifier.drac28909829
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/MINECO/2PE/DPI2016-76019-R
local.citation.authorArmengol, J.; Garzon, N.; Vega, F.; Altemir, I.; Millan, M.
local.citation.publicationNameBiomedical optics express
local.citation.volume11
local.citation.number5
local.citation.startingPage2818
local.citation.endingPage2829


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