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dc.contributor.author Comastri, Silvia Ana Elva
dc.contributor.author Perez, Liliana Ines
dc.contributor.author Perez, Gervasio Daniel
dc.contributor.author Martin, G.
dc.contributor.author Bianchetti, A.
dc.date.available 2017-04-05T21:09:05Z
dc.date.issued 2011-02
dc.identifier.citation Comastri, Silvia Ana Elva; Perez, Liliana Ines; Perez, Gervasio Daniel; Martin, G.; Bianchetti, A.; Corneal aberrations in keratoconic eyes: influence of pupil size and centering; IOP Publishing; Journal of Physics: Conference Series; 274; 1; 2-2011; 1-9
dc.identifier.issn 1742-6588
dc.identifier.uri http://hdl.handle.net/11336/14890
dc.description.abstract Ocular aberrations vary among subjects and under different conditions and are commonly analyzed expanding the wavefront aberration function in Zernike polynomials. In previous articles, explicit analytical formulas to transform Zernike coefficients of up to 7th order corresponding to an original pupil into those related to a contracted displaced new pupil are obtained. In the present paper these formulas are applied to 20 keratoconic corneas of varying severity. Employing the SN CT1000 topographer, aberrations of the anterior corneal surface for a pupil of semi-diameter 3 mm centered on the keratometric axis are evaluated, the relation between the higher-order root mean square wavefront error and the index KISA% characterizing keratoconus is studied and the size and centering of the ocular photopic natural pupil are determined. Using these data and the transformation formulas, new coefficients associated to the photopic pupil size are computed and their variation when coordinates origin is shifted from the keratometric axis to the ocular pupil centre is analyzed.
dc.format application/pdf
dc.language.iso eng
dc.publisher IOP Publishing
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject CORNEAL ABERRATIONS
dc.subject KERATOCONUS
dc.subject ZERNIKE COEFFICIENTS
dc.subject.classification Óptica
dc.subject.classification Ciencias Físicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Corneal aberrations in keratoconic eyes: influence of pupil size and centering
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-04-03T17:29:59Z
dc.journal.volume 274
dc.journal.number 1
dc.journal.pagination 1-9
dc.journal.pais Reino Unido
dc.journal.ciudad Bristol
dc.description.fil Fil: Comastri, Silvia Ana Elva. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Perez, Liliana Ines. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica; Argentina
dc.description.fil Fil: Perez, Gervasio Daniel. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Martin, G.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Reichert Inc.; Estados Unidos
dc.description.fil Fil: Bianchetti, A.. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica; Argentina
dc.journal.title Journal of Physics: Conference Series
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/1742-6596/274/1/012109/meta
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/1742-6596/274/1/012109


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)