Abstract
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.
© 1988 Optical Society of America
Full Article | PDF ArticleMore Like This
Pablo Artal, Javier Santamaría, and Julian Bescós
J. Opt. Soc. Am. A 5(10) 1791-1795 (1988)
Ignacio Iglesias, Norberto López-Gil, and Pablo Artal
J. Opt. Soc. Am. A 15(2) 326-339 (1998)
Junji Maeda and Kazumi Murata
Appl. Opt. 20(2) 274-279 (1981)