PolySA™ - Polycarbonate Trifocal 7x28 (High Index 1.586) 76mm Diameter Lens Blank Segment Displacement: 6.75mm in, 5mm down Adds are in 0.25 diopter steps from 1.50 to 4.00

Nominal Curve	True Curve	Radius mm	Actual SAG at 50mm	Nominal Concave	Center Thickness	Edge Thickness
4.25	4.23	125.296	2.52	4.90	9.1	9.9
6.00	5.96	88.926	3.59	6.00	8.6	8.7
8.50	8.50	62.353	5.23	9.90	9.3	11.9