Fig. 7From: Influence of posterior corneal astigmatism on postoperative refractive astigmatism in pseudophakic eyes after cataract surgeryDouble-angle plots of postoperative refractive astigmatism. The mean vector of the astigmatism (represented by the grey rhombus, larger than the other plots) was 0.41 D axis 175° (each ring = 0.5 D, outer ring = 3.0 D)Back to article page