Camber Technology utilizes intricate surface designs on both sides of the lens to deliver superior visual correction.

Innovation on the front surface

A single progressive lens contains multiple power levels, which means it requires several optimal base curves that increase in diopters from top to bottom. The power for distance vision demands a flatter base curve, whereas the power for near vision requires a steeper one. When crafting a free-form progressive lens from a spherical lens blank, these differing powers must share a single base curve, which may not be perfectly suited for the near zone.

The Camber lens blank showcases a variable base curve, an innovative front surface feature that ensures the optimal base curve for all viewing zones.

Three components working in harmony

The innovative lens blank marks just the starting point. When its unique front surface is merged with an advanced digital design on the back side, the two surfaces synergize to create the complete Camber finished lens.

The Camber blank

Featuring a variable base curve from Younger Optics, the Camber lens blank enhances the spherical lens blank by providing a progressively increasing base curve, which is more suitable for progressive prescriptions.

The Camber Rx design calculation by IOT

Camber lens designs are crafted using IOT Digital Ray-Path 2 Technology and Steady Plus Methodology. These designs are mathematically adjusted to minimize peripheral aberrations and smartly utilize the wearer’s accommodation, significantly reducing aberrations throughout the entire field of vision. They also maintain precise control over mean power, effectively eliminating spherical error in the lateral areas of the lenses. This results in enhanced lateral vision and superior image stability

Personalization parameters

When needed, the Rx design computation is augmented with a comprehensive set of personalization parameters that account for the distinct characteristics of the frame and the wearer’s preferences. This approach produces a finished lens that is thoroughly tailored to each individual patient.

No lens is more advanced

Camber Steady Plus Progressive lenses offer an unparalleled visual experience, featuring broad reading areas, enhanced peripheral vision, an expanded power range, more visually appealing lenses, and exceptional performance for near-vision tasks.

Wearers reported near zone easier to find with camber lenses
Wearers reported near vision quality equal or better with camber lenses
Wearers reported easier adaptation with camber lenses

In a double-blind study, test wearers compared the same progressive design, one of them engineered with Camber technology and the other one without it.

  • Test wearers wore each pair of glasses for the duration of one week but were not aware of which lenses they were wearing for the entirety of the study.
  • Both pairs of lenses were of identical material and base curve and mounted in the same frame.
  • Wearers were surveyed about their experience with the lenses after testing them both.


  • Improved vision across all zones (relative to spherical lenses).
  • Enhanced reading area: larger and easier to locate.
  • Easier adaptation. Studies show faster adaptation for most wearers.

Variable base curve

Due to the variation of the base curve, the lens is built from the start with a more ideal surface. It provides excellent optical quality at any distance, especially in near vision.

Flatter lenses

Camber Technology allows the laboratory to select flatter base curves while still giving the patient the curve they need for maximizing their near vision zone.