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The differences in the measured R and R values of the Tecnis Symfony were statistically significant compared to the other models (p 0.05). Various different topographical traits were observed in three diffractive multifocal IOLs. The R values of all studied IOLs were within an acceptable range. Tecnis Symfony showed statistically significant higher surface R values at both central diffractive optic and diffractive step areas. Furthermore, compared to its counterparts, Tecnis Symfony demonstrated highly ordered, concentric pattern in its diffractive sur