What Is Fitting Height and Why Does It Matter?

While Pupillary Distance (PD) determines horizontal alignment, fitting height ensures your progressive lenses are positioned correctly vertically. Without accurate fitting height, the three vision zones — near, intermediate, and distance — can fall in the wrong places, forcing your eyes to strain or tilt your head unnaturally.

What Exactly Is Fitting Height?

Fitting height is the distance from the bottom of your eyeglass frame to the center of your pupil when you’re looking straight ahead in a natural, relaxed posture.

• It positions the near zone exactly where your eyes drop when reading.
• It ensures the intermediate and distance zones align with your typical gaze angles.

Without the right fitting height, progressives can feel off-balance, making adaptation harder and reducing visual comfort.

How MultiFolks Gets It Right

Unlike traditional methods, which rely on in-store marks and rulers, MultiFolks uses AI-powered face mapping via webcam to:

• Capture the exact frame dimensions you’ve chosen.
• Measure your pupil position in real time as you look naturally at the camera.
• Lock in your fitting height so each lens zone aligns with your posture and head angle.

This process gives ±1mm precision, helping your lenses feel comfortable from the first wear.

Why It’s Essential for Progressives

Even a few millimeters off can:

• Make near tasks feel blurry or force you to tilt your head awkwardly.
• Cause the intermediate zone to sit too high or low, straining your neck during screen use.
• Reduce the usable area for each zone, especially in smaller frames.

With MultiFolks, PD and fitting height work together so your progressives feel natural from day one.