Two models of TECNIS toric IOLs were used; toric IOL (toric-I IOL, ZCV) and toric II IOL (toric-II IOL, ZCW), which are based on a similar platform including material, refractive index, design, configuration, and mechanical properties, except for the finish of side surface of the haptics. The toric-I IOL has smooth surface finish, while the toric-II IOL has frosted haptics. The common IOL specifications include overall diameter of 13.0 mm, optic diameter of 6.0 mm, biconvex optic with anterior toric aspheric surface and square optic edge, ultraviolet-blocking hydrophobic acrylic material, and refractive index of 1.47 at 35 °C.
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