Introduction
How it Works
Digital Ray-Path® computes the back surface of the lens with an algorithm to optimize the lens while considering the combination of 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 with all of the wearer’s lens and fitting parameters.
Step 2
Space Object
Digital Ray-Path® uses an algorithm to optimize all visual zones of the lens.
Step 3
Ray Tracing

By simulating each point of the eye’s gaze and rotation, the Digital Ray-Path® algorithm computes the compensation of thousands of ray tracings to minimize the oblique aberrations at each point across the entire back surface.
Individual Personalization
Personalization parameters used for the calculation are specific for each individual wearer. Those parameters represent the identity of each wearer and make it possible to create unique lenses.
1. Prescription

2. Naso-pupillary Distance (NPD)

3. Pupillary Heights

4. Frame Dimensions

5. Pantoscopic Angle

6. Wrap Angle

7. Back Vertex Distance (BVD)

8. Near Working Distance

9. Variable Inset Optimization

10. Optimizing for High Rx

Prescribed Power vs Compensated Power
Prescribed Power

Compensated Power
