Fig. 2
From: Rotational stability and refractive outcomes of a new hydrophobic acrylic toric intraocular lens
Comparison of preoperative corneal astigmatism (a) and postoperative refractive astigmatism (b) at the corneal plane in a double-angle plot. A clear centralization of the vectors around the center can be seen postoperatively. The centroid of the postoperative refractive astigmatism is statistically different from zero