What does it mean when a frame has pantoscopic tilt?

Pantoscopic tilt refers to the angle at which a frame’s lenses are tilted forward from the top of the frame to the bottom. When a frame has pantoscopic tilt, it means the bottoms of the eyewires are set in closer than the tops. This design allows the lenses to align more closely with the natural position of the eyes when looking straight ahead, improving visual comfort and providing a better fit for the wearer. Accurate fitting of this tilt can enhance peripheral vision and reduce distortion, especially in stronger prescriptions.

The effectiveness of pantoscopic tilt becomes particularly evident in frames that need to accommodate the wearer's gaze direction and eye position, ultimately contributing to optimal visual performance.