Figure 12. Illustrative example of a posterior lens surface (cyan) fit with augmented conic sections.

(a) and even polynomials (b). RMSE of the fits were 223 μm, 138 μm, 62 μm, 53 μm for the 4^th, 6^th, 8^th and 10^th order conic sections and 50 μm, 40 μm, 39 μm and 32 μm for the 4^th, 6^th, 8^th and 10^th order polynomials respectively.