Symfony Optiblue Spec Sheet - 0.7 mm (20.0 d) shape:. +5.0 d to +34.0 d in 0.5 diopter increments diameter: +5.0 d to +34.0 d in 0.5 diopter increments.
0.7 mm (20.0 d) shape:. +5.0 d to +34.0 d in 0.5 diopter increments. +5.0 d to +34.0 d in 0.5 diopter increments diameter: