Choosing your glasses frame size. (Get it right everytime).

If you are buying a new pair of glasses online, you will need to know the correct frame size to order to make sure the frame will fit your face.

If you already have a pair of glasses, you can use the measurements on them as a guide. 

We will explain what they mean, so you can better understand how a pair of eyeglasses are made, and what all the numbers mean.

The Numbers on Your Glasses

If you are a glasses wearer, you may have noticed some numbers on the arms or on the side of your frame, or sometimes on the bridge.

These numbers usually include the frame model, colour and size (MM).

Choosing your glasses frame size. (Get it right everytime).

What the numbers mean.

In this example

51-    This represents the width of the lens measured in (mm). This is usually a 2 digit number in the 40 to 62 range.

16-    This is the width of the bridge, the part of your frame which is over your nose. This is usually a 2 digit number in the 14-  24 range. 

135 – This is how long the arm or side of the frame is. This is usually a 3 digit number in the range of 110-150.

Choosing your glasses frame size. (Get it right everytime).

The Bridge Width.

This is the space in the centre of your eyeglasses frame which sits on your nose. It is an important measurement to get the overall fit of the frame correct.

This measurement is of greater importance with an acetate frame, as these frames do not have ajustable pads like a metal frame does.

If the bridge is narrow on a acetate frame, the frame will sit higher on your face.

Choosing your glasses frame size. (Get it right everytime).

The Lens Width.

This is the size of the lens at the front of the frame. Some frames which have a small lens widths are unsuitable for varifocals.

At GTTM all our frames are suitable for varifocals or bifocals.

 

Choosing your glasses frame size. (Get it right everytime).

The Arm Width.

This is a measurement from the dowel point, to the extreme end of the side. 

This is made up of the length to bend and the length of the drop, thus giving the overall length of the side.

There is some wiggle room here as the sides can be adjusted to fit behind your ears.