Our exclusive Integrated Transmittance Control (itc) technology is a progressive lens design software built on five decades of science and experience. Using a revolutionary 3D computer model, itc technology models nearly every scenario of how human eyes really see with any given prescription. itc technology is incorporated with the tried and true, award winning Summit progressive lens design.

Three major innovations of itc include:

• In Wear Customization – Compensates for differences between “wearing position” and “refraction position” by adjusting for variances between pantoscopic angle, frame wrap, viewing angle and vertex distance.
• 120 Variable Insets – Lens design changes with the distance prescription and reading power for perfect placement of the intermediate and reading area.
• Design Symmetry – Identical balance of nasal and temporal zones for increased viewing comfort, better binocular vision, and a reduction of the “swimming” effect.