Forward light scatter analysis of the eye in a spatially-resolved double-pass optical system.
Bottom Line: An optical analysis is developed to separate forward light scatter of the human eye from the conventional wavefront aberrations in a double pass optical system.We prove an additivity property for radial variance that allows us to distinguish between spot blurs from macro-aberrations and micro-aberrations.When the method is applied to tear break-up in the human eye, we find that micro-aberrations in the second pass accounts for about 87% of the double pass image blur in the Shack-Hartmann wavefront aberrometer under our experimental conditions.
Affiliation: School of Optometry, Indiana University, 800 Atwater Avenue, Bloomington, Indiana 47405, USA. email@example.comShow MeSH
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Mentions: For the simulations shown in Table 1, we assumed that the angular resolution of the detector of spot images cast by individual lenslets is 0.11 arcmin per pixel. For example, if the focal length of the lenslet is 24 mm, this angular resolution is equivalent to a linear resolution of 0.76 micron per pixel. Figure 6Fig. 6
Affiliation: School of Optometry, Indiana University, 800 Atwater Avenue, Bloomington, Indiana 47405, USA. firstname.lastname@example.org