01 · HINGE
Hinges and screws are moving parts
The hinges open and close repeatedly every day.
Screws can gradually loosen, and the hinge itself can develop wear or play.
If a temple moves much more freely than before or wobbles, inspect both the screw and hinge.
“Loose hinges” can mean a backed-out screw, play in the hinge knuckles, or wear of the components themselves. Tightening the screw may solve one case but not a hinge that becomes loose again immediately or visibly rocks at the joint. Identify the mechanism rather than repeatedly overtightening and risking thread damage.
02 · TEMPLE SPREAD
Temples are repeatedly spread during use
Each time glasses are put on, the temples open to the width of the wearer’s head.
One-handed removal or wearing glasses on top of the head can repeatedly force them wider than normal.
Over time, overall width and temple direction can change.
Temples can flex within their elastic range during normal use, but repeated excessive spreading can leave a permanent change in angle. Wearing glasses on top of the head or removing them one-handed can load one side more than the other and make the two temples change at different rates. When refitting, check whether the front width and hinge alignment changed along with the temples instead of simply squeezing the temples inward.
03 · NOSE PAD
Nose pads do not remain unchanged forever
Silicone pads can harden or change surface characteristics with age.
Pad arms can also shift slightly from repeated handling or external force, changing height, spacing or angle.
These changes can affect grip and stability at the nose.
04 · ACETATE DEFORMATION
Plastic frames are affected by heat and pressure
Acetate can change shape under high temperature or sustained pressure.
Hot car interiors or strong nearby heat sources can alter temple angle and front shape.
Acetate is intentionally heat-adjustable, but unwanted heat and sustained pressure can also change its shape. If the frame is compressed on one side in a hot environment, temple angles or the front plane may change asymmetrically. During professional readjustment, heat the needed area evenly and cool it in the intended shape, avoiding excessive heat that could damage the surface or structure.
05 · DAILY USE
Daily habits influence how quickly fitting changes
One-handed removal, wearing glasses on the head or carrying them loose in a bag can apply repeated asymmetric force or pressure.
The condition of a frame depends not only on material but also on handling and storage.
Treat daily habits as clues to the direction of repeated loading rather than as automatic proof of cause. If the same hinge repeatedly loosens or one temple repeatedly spreads, the way the frame is removed and stored is worth reviewing. When the same deformation returns after refitting, changing both the habit and the frame/fitting condition is more useful than repeatedly restoring the same geometry.
SOLUTION GUIDE
Solutions at a glance
Check screws and hinge play.
Check temple spread.
Check nose pads or bridge condition.
Check heat exposure and storage.
GLANOS FITTING CHECK
GLANOS fitting check order
- Front
Check overall alignment. - Nose pads / bridge
Check nose support and surface condition. - Width
Check temple spread and side support. - Temple bend
Recheck behind-ear support.
CAUTION
Do not keep tightening only one part because the glasses have become loose
Several areas may have changed together. Narrowing only the temples or tightening only the nose pads can create pressure elsewhere, so refitting should start from the front and proceed in sequence.
GLANOS EYEWEAR
There is a reason glasses feel uncomfortable.
loose glasses · hinge · screws · temple deformation · nose pads · acetate · eyewear maintenance · eyewear fitting