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26 April 2007 The influence of human eye aberrations on the resolution and field of view of fundus-cameras
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In this paper we estimate isoplanatic patch size of human eye using experimental results of human eye aberrations measurements. For examined subjects it was found to be in the range 1.1° to 2.5°. The size of isoplanatic patch for Gulistrand-Navarro model was calculated, it was found to be close to values obtained experimentally. We also measured contribution of corneal surface and internal optics into total aberrations of the eye. We modified Gullstrand-Navarro eye model to reproduce on-axis and off-axis performance of the eyes of each measured subject. The distribution of aberrations between optical elements of the eye was taken into account when modeling. We also investigated isoplanatic patch size widening methods such as average phase correction using 2 beacons and immersion method based on compensation of external corneal surface refraction with immersion liquid. Immersion method was found to be the most appropriate for isoplanatic patch widening as it allows us to increase isoplanatic patch size almost twice without loss of image quality at the center of the image.
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Alexander Dubinin, Tatyana Cherezova, Alexey Belyakov, and Alexis Kudryashov "The influence of human eye aberrations on the resolution and field of view of fundus-cameras", Proc. SPIE 6535, Saratov Fall Meeting 2006: Optical Technologies in Biophysics and Medicine VIII, 653506 (26 April 2007);


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