Progressive lenses

OptiMax

Adaptive design for everyday distances

Explore design and specifications
THE DESIGN AT A GLANCE

Adaptive progressive with personalisation and variable inset, designed to connect distance, intermediate and near viewing needs.

Durabon catalogue ↗
DESIGN / PURPOSE

Application and design rationale

Adaptive design with a variable near corridor

Adaptive design with a 12–18 mm near-reference range allows selection according to fitting height. Corridor and inset must match actual frame dimensions.

Design identity
Design identifierDescription
CategoryAdaptive multipurpose lifestyle progressive lens
Design typeAdaptive
TECHNICAL PROFILE

Technical specifications

Orderable options depend on prescription, material and current product availability.

OptiMax technical specifications
Technical parameterValue / status
Product classMarket SegmentHigh-end progressive
Computational technologyCalculation TechnologyDuraTrace
Design typeTypeAdaptive
Available materialsAllowed MaterialsAll materials
Pre-calibrationPrecalibrationYes
PersonalisationPersonalizationYes
Prism reference pointPrism Reference Point (PRP)Geometrical centre
Distance reference pointDistance Reference Point (DRP)+10 mm
Fitting reference pointLayout Reference Point (LRP)+4 mm
InsetInset0–4 mm (DuraFit Inset)
Near reference pointNear Reference Point (NRP)12–18 mm
Addition rangeAddition Range+0.75 to +4.50 D
PRP decentration range0 to 12 mm
Specified indices and optionsIndices 1.50, 1.53, 1.60, 1.67 and 1.74 (clear, photochromic, Transitions 8 and polarised); confirm final availability when ordering.
DESIGN / ENGINEERING

Design mechanism and features

Choosing visual-field priorities

OptiMax is Adaptive and its text refers to six user profiles. Driving examples prioritise distance/intermediate vision; reading/tool work prioritise intermediate/near vision. The other four profiles' names and ranges are not specified.

Balancing the viewing zones

Changing visual-field priorities redistributes power and unwanted astigmatism. The aim is to match the principal activity; all zones cannot expand simultaneously without limit.

Calculation and adaptation

DuraTrace handles ray calculations and DuraFit Inset adjusts the near zone. The document also mentions DuraAperture, with NRP 12–18 mm and addition +0.75 to +4.50 D.

ENGINEERED FOR VISION

Technologies in this design

DuraTrace
Ray-tracing calculations and optical-aberration optimisation in surface design.
DuraFit Inset
Near-zone inset adjustment; the model's range appears in its specification table.
DuraAperture
Considering the effective pupil aperture when calculating viewing zones.
POSITION OF WEAR

Measure before manufacture

Required parameters vary by design and must be recorded by a professional.

Monocular PD
Each eye's pupillary distance is recorded separately to align horizontal lens positioning with the visual axis.
Fitting Height
Fitting height is recorded on the adjusted frame in the natural position of wear; the required near zone must also fit within the frame.
BVD
Distance from the rear lens surface to the corneal apex; relevant to power-compensation calculations in personalised models.
Pantoscopic Angle
The frame's vertical tilt in the position of wear must be measured; example values are not substitutes for measurement.
Wrap Angle
The horizontal curvature of the frame relative to the face, describing lens positioning.
Box A
Horizontal width of the frame opening in the boxing system.
Box B
Vertical height of the frame opening in the boxing system.
DBL
Distance between the two lens boxes at the frame bridge.
ED
Effective diameter: twice the greatest distance from the boxing centre to the lens-shape edge, used for blank selection and edging calculations.

Design-specific inputs

  • Working Distance (near and intermediate): defines the wearer's primary task distance to calibrate power gradient and working depth.
  • Corridor Length / NRP Selection (12–18 mm): select corridor length according to frame height (Box B) and the wearer's viewing ergonomics.
  • DuraFit Inset (variable 0–4 mm): calculates horizontal displacement of the reading segment from working distance and prescription power.
Monocular pupillary distance

Monocular pupillary distance

For aligning the lens centre with each eye's visual axis.

Fitting height

Fitting height

Vertical pupil position relative to the frame in the position of wear.

Back vertex distance

Back vertex distance

One of the inputs describing the actual position of wear.

These are basic fitting parameters; additional inputs and the level of personalisation are specified for each model.

Complete parameter guide ↖
SOURCE / CATALOGUE 2026

Original details in the catalogue

Catalogue prices relate to the published edition; enquire for current prices and prescription availability.

View English catalogue ↗
View the original catalogue pageCatalogue page OptiMax
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