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Odd aberrations and double-pass measurements of retinal image quality

AuthorsArtal, Pablo; Marcos, Susana ; Navarro, Rafael; Williams, David R.
KeywordsHuman eye
Retinal image quality
Double-pass method
Aerial image
Ocular aberrations
Point-spread function (PSF)
Modulation transfer function (MTF)
Phase transfer function
Issue DateFeb-1995
PublisherOptical Society of America
CitationJournal of the Optical Society of America A 12(2): 195-201 (1995)
AbstractWe investigated the formation of the aerial image in the double-pass method to measure the optical quality of the human eye. We show theoretically and empirically that the double pass through the eye’s optics forces the light distribution in the aerial image to be an even-symmetric function even if the single-pass point-spread function is asymmetric as a result of odd aberrations in the eye. The reason for this is that the double-pass imaging process is described by the autocorrelation rather than the autoconvolution of the single-pass point-spread functions, as has been previously assumed. This implies that although the modulation transfer function can be computed from the double-pass aerial image, the phase transfer function cannot. We also show that the lateral chromatic aberration of the eye cannot be measured with the double-pass procedure because it is canceled by the second pass through the eye’s optics.
Description11 pages, 8 figures, 4 extra plates.-- PMID: 7869151 [PubMed].
Publisher version (URL)http://dx.doi.org/10.1364/JOSAA.12.000195
Appears in Collections:(CFMAC-IO) Artículos
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