What are the 3 numbers on the inside of my glasses?

1) The eye size number (it is the size of the lenses on your frame). 2) The bridge size number (the distance between the lenses). 3) The temple length number (it is the size of that part of your eyeglass frame, which rests upon your ears).

What is written on the inside of my glasses?

If you look on the inside of your glasses, you’ll find a number that looks like: 52 18 135. This information shows you the size of your glasses; the lens diameter, the bridge width and the side length, all measured in millimetres. 1: The lens diameter is the width of the lens (in mm), measured from the bridge.

Is my PD written on my glasses?

You usually can’t find your PD number written on your eyeglasses. The numbers on the inside of the temple arms of some frames show the measurements for the frame itself. Your PD number should be written on your eyeglass prescription in the PD section.

How do I know what size glasses I need?

How to measure yourself for frames that fit perfectly

1. Stand in front of a mirror and hold the ruler in line with your temple.
2. Measure the distance between your temples in inches.
3. Multiply your measured value by 25.4 to convert from inches to millimetres.

How do you read eyeglass numbers?

Your glasses size is made up of 3 numbers that indicate measurements in millimeters, such as “45 20-135.” The first number will be the eye size, which measures the width of 1 lens. The second number indicates the bridge width, or the distance between the lenses.

Why is there writing on my glasses?

There are little markings on the lenses to allow the optometrist/dispensing optician to ‘mark up’ the lenses to check positioning. They are there so that they can be checked if there are any problems. Only a couple of other types of lens are marked in this way, and those are usually safety glasses.

Can I order glasses without PD?

If your PD is off, the “optical center” of your lenses will be, too, and your glasses won’t be as effective as they should be. Lots of optometrists will give you a copy of your prescription but not include your PD. That’s because they know that, armed with both, you can order your glasses online.

What’s the difference between 52 and 54 glasses?

Lens width is measured from left to right at the widest point in the lens. Between a 52 and 54 eyesize, the 54 will have a wider lens so the whole frame will be wider too. The lens will also be a little taller to preserve the shape. The bridge and temple measurements will usually remain the same.

What does 135 glasses mean?

What do the numbers on your eyeglass frames mean?

These numbers describe the size of your eyeglass frames, specifically: The eye size (the size of the openings in the frame for the lenses) The bridge size (distance between the lenses) The temple length

What are the sizes of glasses?

Glasses have three primary sizes you need to know about. Eye size is the width of the lenses at the widest part. It’s the most common measurement you’ll see in reference to the size of glasses. Ray-Ban New Wayfarer Sunglasses come in 52 mm and 55 mm lens sizes.

How to find your glasses size?

Measure horizontally across one lens at its widest point to find your lens width.

What are the numbers on eyeglasses?

The eyeglass numbers are usually written as: 49-19-135 or they might have small boxes between the numbers on the eyeglass frame. 1. The first number in the eyeglass size is the distance across one lens of the eyeglass frame ( does not include the frame)