Trifocals
S728 Perform+™
S728 Perform+ is a trifocal lens with fully optimized optics in all directions. Including calculations based on frame parameters. The middle segment has 50 % of the addition.
Addition: | Engraving: | Default parameters: |
1.5-4.0 | Sign: P+ | To be specified |
Symbol: ◇ |
S728 Atoric+™
S728 Atoric+ is a trifocal lens with a back surface atoric design with an individualized aspherization in both meridians for all powers. Optimized calculations for all base curves. The middle segment has 50 % of the addition.
Addition: | Engraving: | Default parameters: |
1.5-4.0 | Sign: A+ | CVD: 13 mm |
Symbol: ◇ | FFT: 4° | |
PT: 6° |
S728 Classic
S728 Classic is a trifocal lens with a spherical design. The peripheral optical quality is decreased because of the spherical geometry. Especially when a changed base curve is desired or with a prescription with high cylinder power, S728 Classic is not recommended. The middle segment has 50 % of the addition.
Addition: |
1.5-4.0 |