FRAME FIT GUIDE

Find your starting point

Use frame measurements, silhouette and the way your current eyewear fits to make a more confident choice.

Lens widthBridge widthTemple length

Read the numbers, then judge the fit as a whole.

Eyewear measurements are useful reference points, but overall comfort depends on several dimensions working together.

Lens width

The horizontal width of one lens, usually measured in millimeters. A larger number generally creates a wider lens area, but frame shape still affects the visual result.

Bridge width

The distance between the lenses at the nose bridge. It can influence how high or low the frame sits and how secure it feels.

Temple length

The length of the arms from the hinge toward the ear. They should sit naturally without forcing the frame forward or creating pressure.

How to compare with a pair you own

Find a comfortable pair

Choose sunglasses or glasses that already feel balanced on your face.

Check the markings

Many frames have measurements printed inside the temple arm, often in a format similar to 52–18–145.

Compare the full profile

Use the numbers together with frame shape and total width. A 52 mm round lens does not feel the same as a 52 mm square lens.

Visual styling guide

Frame directionTypical visual effect
Square / RectangleMore structure and definition.
RoundSofter, more relaxed lines.
AviatorClassic, open lens profile.
Cat-eyeLifted outer lines and a more expressive silhouette.
OversizedMore coverage and a stronger fashion statement.
Wraparound / SportCloser, more active-looking profile.

Fit checks after you put the frame on

  • The bridge feels secure without excessive pressure.
  • The temples sit comfortably without pinching.
  • The frame does not constantly slide during normal movement.
  • Your eyelashes do not repeatedly touch the lenses.
  • The frame looks balanced from the front rather than obviously too narrow or too wide.

This guide is general sizing information, not a medical or optical fitting service. Individual comfort varies by face shape, nose bridge and personal preference.

Still unsure about a frame?

Send us the product link and, if possible, the measurements from a pair you already wear comfortably.

Contact KOERNOER