IOT Digital Ray-Path 2 is IOT’s foundational technology for minimizing oblique aberrations in personalized and compensated free-form lenses. In addition to mathematically compensating for oblique aberrations, IOT Digital Ray-Path 2 adds the intelligent use of the wearer’s accommodation: the small power adjustments the eyes naturally make to view objects at different distances.

Pushing the limits of geometry in lens personalization

IOT Digital Ray-Path 2 pushes the limits of geometry in lens personalization by incorporating the wearer’s accommodative capacity in the final lens calculation to further minimize oblique aberrations. Oblique aberrations, found in any lens, include astigmatic and spherical power errors. These errors create an out-of-focus image as the wearer’s gaze moves away from the optical center of the lens. Eliminating them completely is not mathematically possible. Some residual power error remains, causing a slight blur.

The potential of accommodation

The relationship between eye accommodation, the accommodative object space, and compensated power has long been understood. Until now, lens calculation technology has not been sophisticated enough to create free-form digital lenses that take full advantage of this knowledge.

Accommodation is the wearer’s natural ability to focus on different distances, without moving their eyes or head, by stimulating or relaxing the lens within the eye. IOT Digital Ray-Path 2 incorporates this factor into each individual lens calculation. IOT Digital Ray-Path 2 also considers the accommodative object space, the volume defined by the points within the clear visual range, for each direction of gaze.

• IOT Digital Ray-Path 2 works in synergy with nature. It utilizes the innate power of the human eye to refine the optimization process for personalized lenses.
  
  

• IOT Digital Ray-Path 2 mathematical methods take advantage of the natural ability of the visual system to compensate for a portion of the spherical component of oblique aberration.
  
  

• IOT Digital Ray-Path 2 considers small power adjustments wearers can naturally make at each fixation point. Oblique aberrations are minimized, in a more effective way, offering wearers impeccable visual quality.
  
  Benefits:
  - Wider Visual Fields
  - Precise and comfortable vision
  - Optimized for accomodative object space
  - A more consistent wearer experience
  - Near elimination of peripheral blur
  - Superior visual quality with digital devices