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Figure 2: Plotted in the top panel is the percentage difference in relative letter legibility of the astigmatic defocus conditions relative to spherical defocus for the 24 Gujarati letters tested. Open symbols represent data obtained using the astigmatic defocus at axis 180 and closed symbols astigmatic defocus at axis 90. The solid straight line represents the spherical defocus baseline and the broken lines the 10% difference |
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