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. Author manuscript; available in PMC: 2010 Oct 11.
Published in final edited form as: J Cataract Refract Surg. 2009 Jan;35(1):139–152. doi: 10.1016/j.jcrs.2008.09.014

Table 3.

Slope, intercept, and coefficient of determination (R2) for the regressions of each Zernike coefficient 2nd through the 4th radial order calculated referenced to the pupil center versus referenced to the apex normal.

Radial
Order
n		 Angular
Frequency
m		 Slope Intercept R2
2 −2 0.992 −0.026 0.984
2 0 0.992 0.046 0.984
2 2 1.000 0.031 0.989
3 −3 0.987 −0.006 0.966
3 −1 0.897 0.023 0.847
3 1 0.969 0.077 0.781
3 3 0.96 −0.007 0.958
4 −4 0.955 −0.001 0.903
4 −2 1.029 0.000 0.877
4 0 0.976 0.013 0.975
4 2 0.953 0.004 0.895
4 4 0.927 −0.002 0.887