Probably you’re trying to select the best eyewear for your face shape. To get more accurate sizes, it's beneficial to know how to measure your eyeglasses.
This is all you have to know about selecting your glasses measurements and buying the right glasses for you. After all, nothing is more accurate than measuring yourself.
How to measure glasses size?
Glasses are a standard product that comes in their size, just like clothes and shoes. Normally, you can recognize the 3 numbers that know the frame structure. The parameters of the glasses' size are marked on the temple inside. On the contrary, you may find two figures on the bridge of your eyeglasses. Or, you are probably to find the size on the tag.
The meaning of these numbers is as follows:
1. lens width
The distance between the inner sides of the lens at the midpoint of the vertical line of the plane where the lens frames are located. There are generally two methods of measurements, the enclosing-square method, and the baseline method.
The width of the lens is limited by the frame style which possibly is between 40mm and 60mm. Hence, if you prefer a wider lens, you will need to choose a wider frame. If the bifocal or progressive lens is available, it is especially important to recommend a wider frame.
2. bridge width
The width of the bridge of the nose is the position between two lenses, usually ranging from 14mm to 24mm. If you have a narrow bridge of the nose, choose a lower number (15mm to 18mm). If you have a wider bridge of the nose or wide eyes, we recommend using a larger number (18mm to 22mm).
3. temple length
Measure from the screw position to the end of the temple, including the bending position. In other words, it is the "arm's length" of the frame. The length of the temples can be between 120mm and 150mm. the most common length is 135mm, 140mm, 145mm and 150mm. If you think that there is a problem with the temples being too short, please check other frames, because different brands of temples have different lengths.
In addition, you can choose some plastic frame legs that are easy to adjust, but you still need to make sure that the frame length is long enough so that the temples can be placed horizontally on the ears.
4. lens height
The height of the lens is from the top of the lens to the bottom of the lens, usually ranging from 32mm to 38mm. This measurement is especially important for bifocal lenses or progressive lenses.
Unless you need these two styles of glasses, you don't have to worry about your lens height. More than anything, the bottom of the frames should not rub against the cheeks.
It is recommended that you can understand the size of the frame that suits you in the following ways:
1.Check the parameters of the glasses that have been marked (usually marked on the inner side of the temple)
2.If your parameters have worn out, you can use a ruler to measure the spectacles you have fitted to get the data
3.Go to the optician to try it on and write down the size that suits you.