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The CAGE eye model-derived from the best fit of experimental imaging data on human eyes, and characterized by sound values of asphericity for its optical interfaces - is successful in interpolating the mean spherical aberration of the human eye. As such, it can be considered a valuable theoretical scheme for foveal imaging evaluations, representative (with good approximation) of the behavior of a typical human eye. It is of interest to verify the CAGE performances demonstrated in with another set of experimental data relative to the human eye. The comparison would be particularly meaningful if such data were derived not from imaging experiments (similar in some respect to the Campbell-Gubisch experiment,1 which established the CAGE model parameters), but from different types of measurements. This is the case, for example, of the interferometric evaluation of the ocular MTF.
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