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Título: | Retrieval of wave aberration of human eyes from actual point-spread-function data. |
Autor: | Artal, Pablo; Santamaría, J.; Bescós, J. | Fecha de publicación: | 1988 | Editor: | Optical Society of America | Citación: | Journal of the Optical Society of America A: Optics and Image Science, and Vision 5: 1201-1206 (1988) | Resumen: | The wave aberration of human eyes is retrieved from actual point-spread-function (PSF) data and the modulus of the pupil function. The PSF had been obtained previously by application of a hybrid optical-digital method developed recently. The retrieval is done by using a bidimensional Gerchberg-Saxton phase-retrieval algorithm joined to an iterative phase-unwrapping algorithm. To obtain an adequate convergence, the initial wave aberration for starting the retrieval-unwrapping algorithm is estimated with a nonlinear least-squares algorithm. The resulting wave aberrations for several subjects show irregular aberrations superimposed upon the regular wave-aberration components, with astigmatism being the most important asymmetric aberration. | URI: | http://hdl.handle.net/10261/62054 | DOI: | 10.1364/JOSAA.5.001201 | Identificadores: | doi: 10.1364/JOSAA.5.001201 issn: 0740-3232 |
Aparece en las colecciones: | (CFMAC-IO) Artículos |
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Artal,.pdf | 645,2 kB | Adobe PDF | Visualizar/Abrir |
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