Digital lens processing
Freeform digital surfacing in our St. Cloud lab. Each lens is calculated from the patient’s prescription, frame and wearing position, then cut point by point.
Every lens computed on its own
Digital processing goes past standard surfacing. Each lens is computed individually from the prescription, the frame geometry, the wearing position and how the patient uses their eyes.
The result is sharper, wider fields of view with less distortion toward the edges of the lens.
How a digital job runs
- 01
Prescription check
Every order starts with Rx verification and a check of the frame and fitting parameters.
- 02
Digital design
Software calculates the lens surface for this patient, prescription and frame.
- 03
Freeform surfacing
Digital generators cut the surface point by point with a diamond tool.
- 04
Polishing
Computer-controlled polishing brings the surface to optical grade.
- 05
Verification
Power and optics are checked on every lens before it moves on.
What we surface in-house
Progressive, single vision, occupational and specialty work, in every common material.
- Freeform progressives
- All the brands we carry: Artisan, Varilux, Shamir, Hoya, Seiko, DLS, Unity, Aura AI.
- Digital single vision
- Wider clear zones and less peripheral blur than conventionally surfaced single vision.
- Occupational lenses
- Designs for computer, office and other intermediate-distance work.
- High-power prescriptions
- High sphere and high cylinder powers.
- Specialty designs
- Wrap frames, sport designs and custom base curves.
- Materials
- CR-39, polycarbonate, Trivex, 1.67 and 1.74, all available digitally surfaced.
What the design accounts for
- Point by point
- Every point on the surface is calculated and cut, not interpolated from a mold.
- Any lens design
- Progressive, single vision, bifocal and occupational designs all run on the same lines.
- Fitted to the frame
- The surface accounts for wrap angle, pantoscopic tilt, vertex distance and fitting height.
Questions about a complex prescription?
Call 1-888-455-2022 and you’ll reach someone at the lab who knows optics. Or open an account and send us your first digital job.