Navigator Precision Standard Resin Scratch Resistant Progressive Lens
(1.498 Standard Index)
80mm Diameter Lens Blank-
Distance decentration: 2.5mm

Adds in 0.25 diopter steps from 0.75 to 3.50
Nominal Base Curve Actual Base Curve Radius mm 50mm Sag Values Concave Curve Edge
Thickness
Center Thickness
2.00 1.97 269.035 1.16 3.00 16.20 14.90
4.50 4.59 115.468 2.74 6.00 11.80 10.20
5.75 5.84 90.753 3.51 6.00 9.80 10.00
7.75 7.90 67.089 4.83 6.00 9.60 13.80