Do large faces always need large lenses?

01 · TOTAL WIDTH

Look at effective wearing width rather than lens number

For a wider face, first check whether the front and endpieces provide enough actual wearing width.

The temples should not flare excessively and should run naturally toward the ears.

A large A dimension does not automatically guarantee a wide effective fit.

A large face needs adequate wearing width, not necessarily a large lens opening. A relatively small eye size can still be built into a wide front through longer endpieces and an outward hinge start, so lens size and total frame width should be evaluated separately.

02 · ENDPIECE

A frame can use modest lens sizes with wider endpieces

Even if the lens openings are not large, generous endpieces can create enough overall front width.

So a larger face does not automatically need larger lenses.

03 · LENS CONDITIONS

Do not enlarge the lenses unnecessarily just to gain width

An unnecessarily large lens opening can require a larger lens blank and add weight, and depending on the prescription it can also worsen thickness conditions.

In high myopia, larger effective diameter and decentration can increase edge thickness.

It is useful to separate the problem of fitting the face width from the decision about lens size.

With high myopia, avoiding an unnecessarily large lens opening can be helpful when edge thickness is a concern. The final result still depends on prescription, lens shape, decentration, minimum thickness and material, so “smaller lens always means thinner” is too simple.

04 · BRIDGE

A wide face does not necessarily need a wide bridge

Nose anatomy is independent of outer face width.

If the nose is narrow or the internal bridge shape is unsuitable, even a large frame can sit low or slip.

Judge overall width and bridge fit separately.

05 · TEMPLE

Adequate base width reduces unnecessary temple load

If the wearer has a wide face but the frame is narrow, the temples and hinges need to open much farther during wear.

With adequate base width, the temples can run toward the ears without excessive spread.

Temple length and ear position should also be checked.

Even when total width is adequate, the hinge start and temple length still need to match the wearer’s ear position and head shape. A wide face can have persistent temple or posterior-ear discomfort if the temples take the wrong path along the sides of the head.

SOLUTION GUIDE

Solutions at a glance

GLANOS FITTING CHECK

GLANOS fitting check order

1. Front
   Separate printed lens size from effective wearing width.
2. Nose pads / bridge
   Judge nose fit independently of face width.
3. Width
   Check that the temples do not need excessive spread.
4. Temple bend
   Match temple length and bend to the actual ears.

CAUTION

A large face does not mean the lenses also need to be large

GLANOS EYEWEAR

There is a reason glasses feel uncomfortable.