It is common to think progressive lenses require a large, deep frame.
Modern designs can work with shorter fitting heights, but this does not mean every frame is equally suitable.
01 · FITTING HEIGHT
The selected design needs sufficient vertical room
If the lower edge is too close to the fitting point, the minimum height for the chosen design may not be available.
Enough vertical space does not mean that every progressive wearer needs a large frame. A smaller frame can work when the selected design meets its minimum fitting requirement and there is enough usable area below the pupil; a large frame can still be unsuitable if the eye sits in the wrong place.
02 · STABLE BRIDGE
The frame position should remain stable
If the bridge or pads allow the frame to slide, the effective fitting height changes during wear.
A stable bridge or nose-pad fit helps the measured fitting height and monocular PD remain valid during daily wear. If the frame repeatedly slides, even careful measurements no longer represent the real viewing position, so stable support matters more than simply tightening the frame.
03 · FRAME WIDTH
A frame that moves laterally can also be a problem
An overly wide frame can shift; an overly narrow frame can change its position and tilt through pressure.
Frame width affects more than comfort. A frame that is too wide may shift laterally, while one that is too narrow can change tilt or push forward under temple pressure. Those positional changes can also alter the optical relationship between the lens and the eye.
04 · EYE POSITION
Consider where the eyes sit inside the lens shape
Extreme vertical or horizontal pupil placement can change usable zones and edging conditions.
The pupil position within the lens shape affects blank size, decentration and whether the intended progressive zones fit comfortably inside the finished lens. That is why a frame should be evaluated on the face rather than from shape and dimensions alone.
05 · PRESCRIPTION
Frame size matters even more with stronger prescriptions
A large progressive frame can increase edge thickness and weight in higher prescriptions, so visual zones and lens mass must be considered together.
With higher prescriptions, frame size also influences edge or center thickness and front weight. An unnecessarily large myopic progressive can become thicker and heavier, and the extra weight can in turn reduce fitting stability. Frame and lens choices are therefore best made together.
SOLUTION GUIDE
Solution guide
Can the selected design’s minimum height be met?
Does it hold a stable position?
Does the frame fit the face?
Are pupils reasonably placed within the lens shape?
Is the frame unnecessarily large for the prescription?
GLANOS LENS CHECK
Do not separate frame selection from progressive lens selection
Think of prescription → frame → fitting → measurement → progressive design as one process.
CAUTION
Do not recommend a deep frame simply because the wearer uses progressives
First confirm the minimum fitting height and actual wearing conditions of the selected design.
GLANOS EYEWEAR
There is a reason glasses feel uncomfortable.
progressive lenses · fitting height · frame selection · multifocal glasses · eyewear fitting · high prescription