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7 March 2006Human eye anisoplanatism: eye as a lamellar structure
In this paper we consider anisoplanatism effect as a fundamental limitation on the size of high resolution area
(isoplanatic patch) of retinal images obtained using fundus cameras equipped with adaptive optics. Isoplanatic patch
size was estimated using experimental results for on-axis and off-axis eye aberrations measured by Shack-Hartmann
technique. Isoplanatic patch size varied among examined subjects in the range from 1.5o to 2.5o which is in good
agreement with results obtained using ray-tracing technique1. We estimated isoplanatic patch size for Gullstrand eye
model and found it to be close to the values obtained from experimental results for subjects with good vision. We also
discuss the possibilities of Gullstrand eye model modifications for modeling anisoplanatism effect for each particular
subject. We also estimated the efficiency of multibeacon correction method and found out that this method allows us to
almost twice increase the area with high resolution.