Customized Toric Intraocular Lens Implantation in Eyes with Cataract and Corneal Astigmatism after Deep Anterior Lamellar Keratoplasty: A Prospective Study

Figure 2

The error in refractive astigmatism (ERA) in calculations based on postoperatively measured total corneal astigmatism (TCA). X-axis: ERA expressed as the meridional polar value. Y-axis: ERA expressed as the torsional polar value. The small colored dots indicate the individual observations. The large black dots indicate the combined mean (centroid).