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Navigator Polarshades Standard Resin Scratch Resistant Progressive Lens in brown and gray (1.498 Standard Index) 78mm Diameter Lens Blank- Distance decentration: 3mm Adds in 0.25 diopter steps from 1.00 to 3.00 |
| Nominal Base Curve | Actual Base Curve | Radius mm | 50mm Sag Values | Concave Curve | Edge Thickness |
Center Thickness |
| 3.25 | 3.26 | 6.00 | 15.2 | 11.7 | ||
| 5.00 | 5.30 | 6.00 | 12.2 | 11.8 | ||
| 7.00 | 7.08 | 6.00 | 9.3 | 11.9 |