Medium Soft Design, Backside Digital Free-Form Progressive
Description:
Aspheric design, backside free-form processing with a spherical front surface, combine to provide patient-specific optical correction; with clear wide vision in all visual fields, and low distortion.
Target Patient:
FF-2-GX Progressive Lenses feature a blended soft design which is ideal for emerging presbyopes and distortion sensitive users that need a shorter fitting height and corridor. Choose the FF-2-GX for smaller frame sizes.
Specifications:
| Corridor: | 11mm, 13mm, 15mm |
|---|---|
| Minimum Fitting Height: | 16mm, 18mm, 20mm |
| Fitting Point: | 4mm Above Geometric Center |
| Near Power Verification: | 12/14/16mm Below Geometric Center |
| Addition Power: | 0.50 to 3.50 Diopters in 0.25D Steps |
| Prism Power: | Up to 6.00 diopters per pair |
| Refractive Index: | 1.50 (CR-39), 1.53 (Trivex), 1.59 (Poly), 1.60, 1.67, 1.74 |
| Additional Material Colors: | *Transitions, *Transitions Xtractive, *Transitions Vantage, *Polarized |
Production Range:
| 1.50 (CR-39) | -5.00 to +4.00 | Total Power = -7.00 |
|---|---|---|
| 1.53 (Trivex) | -7.00 to +5.00 | Total Power = -8.50 |
| 1.59 (Poly) | -7.00 to +5.00 | Total Power = -8.50 |
| 1.60 | -8.50 to +6.60 | Total Power = -8.50 |
| 1.67 (Hi Index) | -10.50 to +6.50 | Total Power = -10.50 |