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The designed aberration structures (6mm diameter) of the experimental lenses were selected from a sample of eyes with ectasia11 to span a range of aberration structures that differed in magnitude and composition (hence, the necessity of different scales here). Designs are (A) spherical, (B) pure coma, (C–F) full wavefront-guided (aberrations from 2nd to 5th Zernike radial orders).
