The Technical Bottleneck of Passive PALs
Traditional progressive lenses force the eye care practitioner to trade optical clarity at the periphery for near-vision focal power. As addition powers exceed +2.00D, the lateral distortion zones expand exponentially, leading to non-adaptation rates of up to 18% in high-add presbyopic patients. Furthermore, modern multi-screen workplace ergonomics require an expansive intermediate field that static progressive geometries simply cannot deliver without severely narrowing distance viewing angles.