The B2B Commercial Problem with Static PALs
Traditional progressive lenses rely on complex curved surface geometries to ramp up optical power from distance to near vision. To generate a +2.00D or +2.50D addition, high lateral cylinder curvature is unavoidable. This creates physical side-effect zones of visual blur and "swim effect", forcing optical practice staff to deal with high non-adaptation rates (often ranging between 8% to 15% in high-add demographics), high remaking costs, and reduced retail margins.