1.56 EvoClear” Flat Top 28 (1.557 High Index) 74mm Diameter Lens Blank Displacement: 5mm in, 5mm down Adds in 0.25 diopter steps from 1.00 to 3.50

Nominal Curve	True Curve	Radius mm	SAG at 50mm	Nominal Concave	Edge Thickness	Center Thickness
0.50	0.45	1177.778	0.27	3.0	15.2	11.8
2.00	1.88	281.915	1.11	3.0	15.3	13.7
4.12	3.97	133.501	2.36	6.0	15.4	12.2
6.12	5.97	88.777	3.59	6.0	13.9	13.6
8.50	8.43	62.871	5.18	6.0	10.3	13.9

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1.56 EvoClear” Flat Top 35 (1.557 High Index) 74mm Diameter Lens Blank Displacement: 5mm in, 5mm down Adds in 0.25 diopter steps from 0.75 to 3.00

Nominal Curve	True Curve	Radius mm	SAG at 50mm	Nominal Concave	Edge Thickness	Center Thickness
0.50	0.45	1177.778	0.27	3.0	15.2	11.8
2.00	1.88	281.915	1.11	3.0	15.3	13.7
4.12	3.97	133.501	2.36	6.0	15.4	12.2
6.12	5.97	88.777	3.59	6.0	13.9	13.6
8.50	8.43	62.871	5.18	6.0	10.3	13.9