01 · EAR HEIGHT
Different ear heights are a natural facial variation
The two ears can differ slightly in height and front-back position.
Even a few millimeters can become visually noticeable in a spectacle frame, especially with a deep lens shape.
02 · TEMPLE POSITION
The same temple position does not create the same result
Even if both temples hook onto the ears in the same geometric way, different ear heights can tilt the front.
The temple direction and vertical support may therefore need to differ slightly between sides.
When ear heights differ, simply bending one temple sharply upward or downward can trade one problem for another. First see how the front is supported on the nose and how each temple travels over the side of the head, then distribute small corrections between hinge direction and bend location when needed. A single large bend can create ear pressure or unequal pantoscopic tilt.
03 · TEMPLE BEND
The bend position may also differ left to right
If the ear start point and rear contour differ, the temple bend can begin at different positions and follow different curves.
Matching the actual ear is usually more comfortable and stable than bending both sides at the same measured distance.
The ear bend is not meant to hook the frame tightly enough to lift the front. It should follow the actual ear contour closely enough to limit forward movement without creating a focal pressure point. Different ear starting positions can justify different bend locations, but both sides should remain stable and should not catch painfully during removal.
04 · FRAME LEVEL
What matters is how the frame sits on the face
Both temples can look identical on a bench and still make the frame tilt on the wearer.
Conversely, slightly different temple shapes can produce a more level and comfortable result on the face.
There is no single facial line that always defines whether spectacles are “level.” Eyebrows, eyes, and ears may each be asymmetric, so forcing the frame to match one landmark can worsen the optical position. Evaluate the frontal appearance together with nose contact, eye position within each lens, temple pressure, and the side-view wearing angle.
05 · LENS POSITION
Check lens position as well as visual level
Do not judge only by appearance when correcting height.
Wearing height, vertex distance and pantoscopic tilt can change at the same time and affect the relationship between the eyes and lenses.
This is especially important with progressive or high-prescription lenses.
Progressive lenses and some individually optimized designs can depend on fitting height, monocular PD, vertex distance, pantoscopic tilt, and other wearing-position data. If correcting ear-height asymmetry substantially changes the frame position, verify whether the wearing conditions still match those used for measurement. The required parameters are product-specific and should not be generalized as mandatory for every lens.
SOLUTION GUIDE
Solutions at a glance
The temple bends do not need to be identical.
Check front alignment and actual ear height together.
Recheck behind-ear pressure and lens position.
Check wearing height and pantoscopic tilt as well.
GLANOS FITTING CHECK
GLANOS fitting check order
- Front
Set the frame itself to a proper reference state. - Nose pads / bridge
Check wearing height and centering. - Width
Set appropriate side support. - Temple bend
In the last step, account for the actual difference in ear height.
CAUTION
Different left-right temple shapes are not necessarily wrong
When facial anatomy differs, the frame may also need small left-right differences. The final criterion is the wearing result and lens position, not symmetry when the glasses are viewed by themselves.
GLANOS EYEWEAR
There is a reason glasses feel uncomfortable.
ear height · facial asymmetry · frame level · temple bend · temple fitting · progressive lenses · eyewear fitting