Standard Frame Size Coding
The sizes you can see with each of the frames on this website are of the same format. They are all given in millimetres, and the numbers are separated by a /. For example 46/20/135.
The first number is the lens diameter.
The second is the bridge width.
The third will be the arm length.

Additional Useful Frame Dimensions
In addition to the standard measurements coded onto frames, we have also shown the overall width (from outside hinge to outside hinge) and the overall height of the frames (at their highest point). These sizes are particularly useful when you are using our Virtual Mirror

The easiest way to select a suitable frame size is to get the dimensions from a comfortable pair of glasses that you already have.
Most commonly you find 3 measurements on one of the arms (perhaps with the help of a magnifying glass), the first two measurements usually being separated by a rectangle – but not always.
On one of the sides or on the bridge you will usually find 3 x measurements - the first 2 measurements are usually separated by a rectangle.


The Lens Diameter is a matter of choice, but the bridge width and arm length will determine the fit.
They do not need to be exact, but the closer they are to your existing comfortable pair, the more likely your new glasses are to be a comfortable fit.
These sizes can sometimes also be located either :
1) On the inside of the bridge

In this case the last dimension (arm length) appears to be missing but it is infact shown separately on the leg (the arm length will generally be either 130, 135, or 140

OR
2) Under the bridge on the nose rests.
The most important part of the frame that determines whether the frame will suit you is the shape of the eye pieces.
After the eye piece shape, the overall width of the frame is the most reliable indication of whether the glasses will suit your face. The overall width of the frame is shown for each pair of frames on the website.
Use our Virtual Mirror or Try At Home service to help find a pair of glasses or sunglasses that will suit you.
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