Corneal Zernike aberrations for different pupils: Precision in the parameters and applications

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Ocular wavefront aberration is usually expanded in Zernike modes. In previous papers formulas for coefficients of up to 7th order corresponding to a new pupil in terms of those computed for an original pupil are obtained and program SLG07 that evaluates them is developed. In the present paper, origi...

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Autores principales: Comastri, S.A., Pérez, G.D., Martin, G., Bianchetti, A.
Formato: JOUR
Materias:
Ocular aberrations
Pupil change
Zernike coefficients transformation
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00303917_v41_n4_p367_Comastri
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00303917_v41_n4_p367_Comastri
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spelling todo:paper_00303917_v41_n4_p367_Comastri2023-10-03T14:39:55Z Corneal Zernike aberrations for different pupils: Precision in the parameters and applications Comastri, S.A. Pérez, G.D. Martin, G. Bianchetti, A. Ocular aberrations Pupil change Zernike coefficients transformation Ocular wavefront aberration is usually expanded in Zernike modes. In previous papers formulas for coefficients of up to 7th order corresponding to a new pupil in terms of those computed for an original pupil are obtained and program SLG07 that evaluates them is developed. In the present paper, original corneal aberrations of various eyes computed in the corneal topographer SN CT1000 are considered. Six factors affecting the precision in the coefficients are analyzed: ocular fluctuations, uncertainty in the original coefficients, original pupil size, maximum order in the expansion, analytical calculation instead of tracing rays and precision in the SLG07 entrance data. The uncertainty in the original coefficients results to be a fundamental factor. © Sociedad Española de Óptica. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00303917_v41_n4_p367_Comastri
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Ocular aberrations
Pupil change
Zernike coefficients transformation
spellingShingle Ocular aberrations
Pupil change
Zernike coefficients transformation
Comastri, S.A.
Pérez, G.D.
Martin, G.
Bianchetti, A.
Corneal Zernike aberrations for different pupils: Precision in the parameters and applications
topic_facet Ocular aberrations
Pupil change
Zernike coefficients transformation
description Ocular wavefront aberration is usually expanded in Zernike modes. In previous papers formulas for coefficients of up to 7th order corresponding to a new pupil in terms of those computed for an original pupil are obtained and program SLG07 that evaluates them is developed. In the present paper, original corneal aberrations of various eyes computed in the corneal topographer SN CT1000 are considered. Six factors affecting the precision in the coefficients are analyzed: ocular fluctuations, uncertainty in the original coefficients, original pupil size, maximum order in the expansion, analytical calculation instead of tracing rays and precision in the SLG07 entrance data. The uncertainty in the original coefficients results to be a fundamental factor. © Sociedad Española de Óptica.
format JOUR
author Comastri, S.A.
Pérez, G.D.
Martin, G.
Bianchetti, A.
author_facet Comastri, S.A.
Pérez, G.D.
Martin, G.
Bianchetti, A.
author_sort Comastri, S.A.
title Corneal Zernike aberrations for different pupils: Precision in the parameters and applications
title_short Corneal Zernike aberrations for different pupils: Precision in the parameters and applications
title_full Corneal Zernike aberrations for different pupils: Precision in the parameters and applications
title_fullStr Corneal Zernike aberrations for different pupils: Precision in the parameters and applications
title_full_unstemmed Corneal Zernike aberrations for different pupils: Precision in the parameters and applications
title_sort corneal zernike aberrations for different pupils: precision in the parameters and applications
url http://hdl.handle.net/20.500.12110/paper_00303917_v41_n4_p367_Comastri
work_keys_str_mv AT comastrisa cornealzernikeaberrationsfordifferentpupilsprecisionintheparametersandapplications
AT perezgd cornealzernikeaberrationsfordifferentpupilsprecisionintheparametersandapplications
AT marting cornealzernikeaberrationsfordifferentpupilsprecisionintheparametersandapplications
AT bianchettia cornealzernikeaberrationsfordifferentpupilsprecisionintheparametersandapplications
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