The Impact of Changes in Corneal Back Surface Astigmatism on the Residual Astigmatic Refractive Error following Routine Uncomplicated Phacoemulsification

Figure 2

Change in astigmatism at the corneal back surface over the central 3 mm zone (x axis) and the corresponding change in residual refractive astigmatic error determined by autorefractometry (y axis) between 2 and 3 months postoperatively. All units are in diopters.