Better vision at every point of the lens 

Digital Ray-Path® is the most advanced technology available when producing digital lenses. It is based on an advanced three-dimensional calculation model that takes into account the position of the lens combined with the natural movements of the human eye across the lens surface. The result is a lens that is more comfortable for the wearer whilst offering improved visual acuity.

How does Digital Ray-Path® technology work?

The three-step process calculates the back surface of the lens taking into account the wearer’s prescription, physiological parameters and frame measurements.

Step 1: Eye-lens system

Digital Ray-Path® prepares a simulation of the lens in front of the eye, taking into account the wearer’s personalisation parameters. The more measurements, the more accurate the simulation will be.

Step 2: Space object

Digital Ray-Path® uses information about the progressive design selected for the wearer to determine which areas of the lens are meant for distance, intermediate or near vision. 

Step 3: Ray tracing

Digital Ray-Path® simulates how the eye rotates to look in every direction, at various distances. For each position of the eye, it computes the oblique aberrations that would limit the visual quality through that particular point of the lens. Digital Ray-Path® uses this information to minimize these undesired aberrations point by point across the lens.