Power Boost lens with five near-power steps, personalisation options and consideration of reading and screen use.
Application and design rationale
Five steps for near-vision needs
The model specifies boost steps of 0.40, 0.65, 0.90, 1.10 and 1.30 D. Selection requires review of the prescription and near activities.
| Design identifier | Description |
|---|---|
| Category | Premium anti-fatigue lens combining single-vision and progressive functions |
| Design type | Power Boost Equipped Lens |
Technical specifications
Orderable options depend on prescription, material and current product availability.
| Technical parameter | Value / status |
|---|---|
| Product classMarket Segment | High-end Anti-Fatigue |
| Design typeType | Power Boost Equipped Lens |
| Available materialsAllowed Materials | All materials |
| Pre-calibrationPrecalibration | Yes |
| PersonalisationPersonalization | Yes |
| Prism reference pointPrism Ref. Point (PRP) | Geometrical Center |
| Distance reference pointDistance Ref. Point (DRP) | +10 mm |
| Fitting reference pointLayout Reference Point (LRP) | +4 mm |
| Near reference pointNear Ref. Point (NRP) | 18 mm |
| InsetInset | 0–4 mm (Core Inset) |
| Power-boost stepsPower Boost Steps | 0.40 - 0.65 - 0.90 - 1.10 - 1.30 dpt |
| PRP decentration range | 0 to 15 mm |
| Specified indices and options | Indices 1.50, 1.53, 1.60, 1.67 and 1.74 In Clear, photochromic and polarised options; confirm final availability when ordering. |
Design mechanism and features
Five boost steps
RestMax is described as a Power Boost Equipped Lens with five steps: 0.40, 0.65, 0.90, 1.10 and 1.30 D. These follow its dedicated table, not the conflicting YoungMax comparison values.
A bridge to progressive-lens use
Alongside near-work support, the text presents RestMax as an option to consider when gradually moving towards an increasing-power structure. This does not guarantee adaptation or suit every wearer equally.
Soft design and personalisation
Key specifications are 18 mm NRP, active personalisation, DuraTrace and 0–4 mm Core Inset. Calculations aim to manage peripheral errors and match the position of wear.
Compare related designs
| Component | RestMax | YoungMax | DigiMax | ReadMax |
|---|---|---|---|---|
| Class | High-end Anti-Fatigue | Small Accomodation | Medium Anti-Fatigue | High-end Anti-Fatigue |
| Boost steps (D) | 0.40, 0.65, 0.90, 1.10, 1.30 | No value specified | 0.50, 0.75, 0.90 | 0.25, 0.50, 0.75, 1.00, 1.25, 1.50 |
| Personalisation | Yes | Yes | Yes | Yes |
| NRP | 18 mm | Not specified | Not specified | 18 mm |
Technologies in this design
- DuraTrace
- Ray-tracing calculations and optical-aberration optimisation in surface design.
- Core Inset
- Standard automatic inset for near-zone positioning, as specified in the product table.
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
- Near Working Distance: the wearer's specified near-task distance used to optimise Core Inset.
Monocular pupillary distance
For aligning the lens centre with each eye's visual axis.
Fitting height
Vertical pupil position relative to the frame in the position of wear.
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 ↖View the original catalogue page
