01 · METAL TEMPLE
Metal temples can often be designed thinner
Depending on material and cross-section, metal frames can use relatively thin temples.
A smaller contact area can make pressure feel more localized along a line or point.
Thin does not automatically mean painful; a correctly sized and shaped metal temple can be very comfortable.
A thin metal temple is not automatically more painful, and a wide acetate temple is not automatically more comfortable. Perceived pressure depends on the force produced by the temple, contact area, cross-sectional stiffness, curvature and the exact place where it contacts the head.
02 · ACETATE TEMPLE
Acetate temples are often wider and thicker
Acetate temples often contact a broader area of the side of the head, which can help distribute pressure.
If the frame is too narrow, however, that broad surface can create a large area of continuous pressure and feel restrictive.
03 · ELASTICITY
Elasticity is not determined by the material name alone
The springiness and recovery of a metal temple depend on alloy, thickness, cross-section, geometry and processing.
Beta titanium may be used where more elastic behavior is desired, but two titanium-family temples can still feel very different because of construction.
Acetate pressure also varies with thickness, curvature and hinge design.
Within both “metal” and “acetate,” thickness, cross section, internal reinforcement and overall temple curve can produce very different spring behavior and pressure distribution. Material name is a useful starting point, but it is a poor stand-alone predictor of comfort.
04 · ADJUSTMENT
Adjustment methods also differ
Metal temples may be mechanically adjusted at the endpiece and along the temple depending on construction.
Acetate temples can be reshaped with controlled professional heating when the material and structure allow it.
Heating acetate at home with a hair dryer or hot water, or forcing it when cold, is not recommended.
Adjustment technique also needs to match the material and construction. Metal temples are usually reshaped mechanically at selected areas, while acetate commonly requires controlled heating and cooling to change shape; neither should be treated as a part intended for repeated over-adjustment.
05 · CHOICE
Neither material is automatically more comfortable
Face width, head shape, frame weight, temple thickness and curvature, and hinge structure all need to work together.
Actual contact position, pressure and overall frame compatibility matter more than material name.
SOLUTION GUIDE
Solutions at a glance
Check contact position and temple construction.
Check frame width first.
Compare temple direction and facial asymmetry.
Recheck the whole frame structure and size.
GLANOS FITTING CHECK
GLANOS fitting check order
- Front
Check basic frame alignment. - Nose pads / bridge
Establish the wearing position. - Width
Judge actual temple pressure and direction, not material alone. - Temple bend
Shape the rear curve appropriately for the material.
CAUTION
Do not judge comfort from material alone
Two frames made of titanium or acetate can feel completely different because thickness, cross-section, temple curvature and frame width are different.
GLANOS EYEWEAR
There is a reason glasses feel uncomfortable.
metal temple · acetate temple · titanium glasses · plastic frames · temple fitting · eyewear fitting
