Frequently asked questions

When should I prescribe the Everyday and when to use the Everyday Wide lenses?

The Everyday is a softer design, that we recommend prescribing for first time multifocal wearers, low addition powers and sensitive progressive wearers, who are a bit more difficult to adapt to changes.

We recommend using Everyday Wide as a harder design for experienced multifocal wearers, higher adds and those who need a more defined near zone.

When should I prescribe occupational designs?

Occupational designs can be used for many applications and persons of all ages. Offering greater flexibility than single vision options and bigger viewing zones than traditional progressive designs, we recommend using as a primary substitute to reading glasses and in behavioural circumstances, and as a second pair offer to multifocal lenses for use in office or intermediate / near applications, to increase visual performance in specific work environments.

Which occupational design should I use and when?

Anti-fatigue lenses offer a ‘low’ addition progressive-like design up to a +1.00 add. Suitable for use as an alternative to single vision, for early presbyopic patients and school environments.

The I.T. Occupational design provides the option to specify a ‘near power shift’ between 0.25 – 3.50 dioptre, offering the flexibility to customise working distance for specific visual needs.

Task is a software-calculated occupational lens providing a simplified approach to dispensing based on lifestyle applications. The wearer is encouraged to wear Task lenses when visual needs are at 40cm (reading) up to 4m focal length, making a perfect solution for office type environments.

The Device lens is similar in concept to Task lenses, providing an alternative for shorter focal length needs. Task lenses offer unparalleled visual performance up to 2m, a perfect solution for digital device and desk-based activities.

What information do I need to order occupational designs?

Anti-fatigue: simply order as a multifocal design, including monocular distance PD and heights measured at pupil centre. A shift is not required, simply include distance rx and the addition required up to +1.00 Add.

I.T. Occupational: order as a full near rx (combining the distance rx and near add) and supply a nominated shift from 0.50 – 3.50D.
Provide distance PD and heights measured on pupil centre.

Task: order as a full multifocal, (distance rx and addition). No shift required; our software calculates the necessary shift in power to optimise vision up to 4 meters. Provide distance PD and heights measured on pupil centre.

Device: order as a full multifocal, (distance rx and addition). No shift required; our software calculates the necessary shift in power to optimise vision up to 2 meters.
Provide distance PD and heights measured on pupil centre.

Do I need to specify a corridor length when ordering Perfection design progressives?

No, you do not need to specify corridor length as advanced software will default to the optimal corridor length option. However, you can specify a request for a corridor length to override default recommendations. Corridor options are supplied as 14mm (short), 16mm (medium) and 18mm (long) to 100% of the full addition. Accuracy progressive designs are customisable for any number between 13mm and 19mm length.

What is Accuracy Calculation?

The Accuracy Calculation is an additional process that allows you to offer your patients a true tailor-made experience. You can specify back vertex index, pantoscopic tilt, and frame wrap, as well as corridor length and inset measurements, resulting in a fully individualised optical lens.

When are lens designs compensated?

When the Accuracy Calculation (requiring position of wear measurements) is requested, the lens power is then compensated to incorporate the effects of BVD, wrap, tilt parameters. The final product will be supplied with a docket of the original and the compensated rx for your records.

Which lenses are available with Shaw technology?

All Perfection design lenses including progressives, occupational, single vision and bifocal options.

How are Shaw Lenses ordered and processed?

Before your first Shaw Lens order, we provide a training about the lenses and their applications, how they work, and what measurement they require for the order. (Complete POW, frame measurements and shape, BVD, wrap, tilt
Once you are all set up, Shaw Lenses can be ordered directly through our website (Practice Tools -> Online Ordering -> Shaw Lens Orders) https://orders.crsurfacing.com.au/pages/shaw After the unique calculation is processed at Shaw Canada, CR Surfacing begins grinding the lenses with the calculated specifications to finalise production.

How advanced is CR Surfacing’s lens technology?

CR Surfacing proudly uses world class technologies and state-of-the-art equipment. Continual investment in the latest technologies allows CR Surfacing to offer incomparable competitive technical advantage with the most advanced lens designs available on the market.

What is the difference between Satin UV and Satin Blue?

Satin UV is a premium anti-reflective coating providing full UV protection with scratch resistant, water and dust repellent attributes for enhanced visual performance and protection. Recommended for any grind and stock lenses, especially for glare-sensitive people and those who are concerned about the aesthetic appearance of their lenses. (Reflections on this coating appear in a green hue.)

Satin Blue is a special anti-reflective coating that filters out harmful blue light, providing full UV protection with scratch resistant, water and dust repellent attributes for enhanced visual comfort and protection. Especially recommended with Occupational lenses, digital eyestrain and for people using digital devices. (This coating appears with a blue coloured hue on the lens surface.)