Three-Random-Point Marking Method for Toric Intraocular Lens Alignment Using the iTrace Aberrometer

Figure 2

The Zaldivar Toric Caliper is used to measure the axis at which the marked points are located. The axis values corresponding to the three marked points are 223° (43°), 309° (129°), and 343° (163°), respectively (only two axis lines can be shown simultaneously. The third axis line needs to be measured separately).