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Abstract:

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.

Registro:

Documento: Artículo
Título:Corneal Zernike aberrations for different pupils: Precision in the parameters and applications
Autor:Comastri, S.A.; Pérez, G.D.; Martin, G.; Bianchetti, A.
Filiación:Grupo de Óptica y Visión, Departamento de Física, Universidad de Buenos Aires, Paseo Colón 850, C1063ACV Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Rivadavia 1917, C1033AAJ Buenos Aires, Argentina
Reichert Inc., 3362 Walden Ave., Depew, NY 14127, United States
Palabras clave:Ocular aberrations; Pupil change; Zernike coefficients transformation
Año:2008
Volumen:41
Número:4
Página de inicio:367
Página de fin:380
Título revista:Optica Pura y Aplicada
Título revista abreviado:Opt. Pura. Apl.
ISSN:00303917
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00303917_v41_n4_p367_Comastri

Referencias:

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  • Guirao, A., Artal, P., Corneal wave aberration from videokeratography: Accuracy and limitations of the procedure (2000) J. Opt. Soc. Am. A, 17, pp. 955-965
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  • Comastri, S.A., Martin, G., Pfortner, T., Analysis of pupil and corneal wave aberration data supplied by the SN CT 1000 topography system (2006) Optik, 117, pp. 537-545
  • Applegate, R., Hilmantel, G., Howland, H., Tu, E., Starck, T., Zayac, J., Corneal first surface optical aberrations and visual performance (2000) J. Refract. Surg, 16, pp. 507-514
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  • Colombo, E., Comastri, S.A., Issolio, L., Echarri, R., Pupil light reflex produced by glare under mesopic adaptation (2007) J. Light Visual Environ, 31, pp. 70-79
  • Guirao, A., Williams, D.R., Cox, I.G., Effect of rotation and translation on the expected benefit of an ideal method to correct the eye's higher order aberrations (2001) J. Opt. Soc. Am. A, 18, pp. 1003-1015
  • Schwiegerling, J., Scaling Zernike expansion coefficients to different pupil sizes (2002) J. Opt. Soc. Am. A, 19, pp. 1937-1945
  • Campbell, C.E., Matrix method to find a new set of Zernike coefficients from an original set when the aperture radius is changed (2003) J. Opt. Soc. Am. A, 20, pp. 209-217
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  • S.A.Comastri, Liliana I.Perez, Gervasio D.Pérez, Karina Bastida, G. Martin, Wavefront aberrations: Analytical method to convert Zernike coefficients from a pupil to a scaled arbitrarily decentered one, 6th Iberoamerican Meeting on Optics and 9th Latin American Meeting of Optics, Lasers and their Applications, Campinas-Brasil 21-26 October 2007, Proc. AIP 978, 69-74 (2008); http://www.ub.edu.ar/investigaciones/dt_nuevos/208_comastri.pdf

Citas:

---------- APA ----------
Comastri, S.A., Pérez, G.D., Martin, G. & Bianchetti, A. (2008) . Corneal Zernike aberrations for different pupils: Precision in the parameters and applications . Optica Pura y Aplicada, 41(4), 367-380.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00303917_v41_n4_p367_Comastri [ ]
---------- CHICAGO ----------
Comastri, S.A., Pérez, G.D., Martin, G., Bianchetti, A. "Corneal Zernike aberrations for different pupils: Precision in the parameters and applications " . Optica Pura y Aplicada 41, no. 4 (2008) : 367-380.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00303917_v41_n4_p367_Comastri [ ]
---------- MLA ----------
Comastri, S.A., Pérez, G.D., Martin, G., Bianchetti, A. "Corneal Zernike aberrations for different pupils: Precision in the parameters and applications " . Optica Pura y Aplicada, vol. 41, no. 4, 2008, pp. 367-380.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00303917_v41_n4_p367_Comastri [ ]
---------- VANCOUVER ----------
Comastri, S.A., Pérez, G.D., Martin, G., Bianchetti, A. Corneal Zernike aberrations for different pupils: Precision in the parameters and applications . Opt. Pura. Apl. 2008;41(4):367-380.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00303917_v41_n4_p367_Comastri [ ]