Grand-Duc
Some patients want the line: a clean switch from distance to reading with no adaptation period. Grand-Duc is a carefully surfaced bifocal, in a 28 mm flat-top, 28 mm round or 35 mm flat-top segment, with the anti-reflective of your choice.
Who it's for
Presbyopes used to a bifocal, or who did not tolerate a progressive.
What sets it apart
- 28 mm flat-top, 28 mm round or 35 mm flat-top segment
- Wide, stable reading area
- No adaptation needed
- Photochromic and polarized on the 28 mm flat-top
Specifications
- Segment
- Flat-top 28 · Round 28 · Flat-top 35
- Addition
- +0.75 to +3.50
- Min. segment height
- 14 mm (round 28) · 17 mm (flat-top 35)
- Segment
- Flat-top 28 mm (ST-28)Round 28 mmFlat-top 35 mm (ST-35)
- Turnaround
- 7 to 10 business days after consolidation
Available materials
CR-39 (1.5)Standard 1.56Polycarbonate 1.59Thin 1.61Ultra-thin 1.67
Options available
ClartéClarté UltraClarté BleuÉclipseTransitions® GEN S™Transitions® XTRActive®Solstice

Bifocal
Presbyopes used to a bifocal, or who did not tolerate a progressive.
Lens types
See what your patient sees.
DistanceScreenReading
Sharp zoneBlurred zone