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Accommodative lag as a function of with-the-rule astigmatic refractive error, stratified by type of astigmatism. A, Myopic or mixed astigmatism. B, Hyperopic astigmatism. Dotted lines show best-fitting linear regression functions. Superimposed data points are displaced along the x-axis for clarity. D, diopters; WTR, with-the-rule.
