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Purpose To evaluate the repeatability of wavefront aberration measurements and the correlation between corneal aberration and pupil size in normal eyes using a wavefront-based autorefractor (i.ProfilerPlus; Carl Zeiss Vision, Germany). Methods A prospective cross-sectional study. Wavefront aberrations, including SA (Z40), coma (Z3 − 1, Z31), trefoil (Z3 − 3, Z33) and total higher-order aberrations (tHOA), were measured at different pupil diameters. The repeatability was evaluated using one-waydoi:10.21203/rs.3.rs-178818/v1 fatcat:3fjcntmfrzbbpmsb5zugqo5bqi