What is the meaning of numbers on prescription glasses and sunglasses?

Have you ever been asked what the meaning of the numbers on the handle of prescription and sunglasses means? Be sure to read this article for the answer.

The numbers on the handle of the glasses will be helpful when buying new glasses. According to these numbers, you can have an easier purchase. Of course, if the model of glasses you intend to buy is not the same as the previous model, these numbers will be different and these numbers cannot be used as a basis for selection. Because the length and width of the lens, the length of the handle, etc. are different in different models. Manufactured glasses are divided into 4 categories or groups based on the numbers on their handles.

What is the meaning of numbers on prescription glasses and sunglasses?

Small glasses: The first category of glasses are small with a width of 130 mm. This model of glasses is suitable for delicate and small faces.

Medium glasses: The second category of glasses are medium, the width of which is the distance between the two sets of glasses is 130 to 135 mm, this model of glasses is suitable for medium faces.

Large glasses: The third category of glasses is called large, and the distance between the two categories is between 135 and 140 mm. People who have bigger and bigger faces should use these glasses.

X-large glasses: The fourth and last category of glasses are X-large or large size, whose width is above 140 mm. People with big faces should use these glasses. When we intend to buy online, it becomes more important to pay attention to the numbers on the glasses handle. In order to determine the size of the glasses, we need to measure such parts as the frame width, the length of the glasses handle, the size of the glasses bridge, the width of the lens and the height of the lens. These sizes are in millimeters, and we will define these concepts below for more familiarity.

Glasses sizes

The width of the glasses

The width of the glasses, or the width of the frame, means the distance between the two edges of the glasses. The size of the frame of the glasses is indicated on the frame of the glasses, and it plays an important role in choosing the frame of the glasses. It is also possible to get the size of the glasses handle from the point where the handle is connected to the frame to its end, that is, we measure from the screw connection that connects the handle to the frame to the beginning of the bend above the ear. Then we measure from the same point to the end of the handle and add these two values ​​together, and in this way we get the size of the eyeglass handle.

Paul Aynak

Eyeglass bridge is another very important number on the eyeglass handle when shopping online. Eyeglass bridge is the place where the eyeglass lenses are connected and placed on the nose. The importance of the eyeglass bridge is that it makes the glasses you choose sit well on your face, or the frame you choose is big or small for your face.

We can measure the smallest size between the nasal surfaces to calculate the eyeglass bridge. If your nose bone is delicate and thin, the eyeglass frame with the nose size of 14 to 16 mm is suitable for you, otherwise, the nose size of 17 to 19 mm is suitable for you.

The width and height of the eyeglass lens

The width of the eyeglass lens is to coordinate the position of the pupil with the lens. To get the size of the lens width, we consider the widest size of the lens, which is also called the eye size. To calculate the height of the lens, you need to measure the longest and longest part of the lens. Calculating lens height is mostly used for bifocal glasses.

In general, the information on the glasses can be used for the following purposes.

• Identifying and buying original sunglasses through the series
  Eyeglass bridge size
  Eyeglass handle size
  Eyeglass lens size
  Numbers engraved on the handle of the glasses

When you look at the frame of your glasses, you will see three numbers with a dash between them. These numbers are measured in millimeters, which helps the eye doctor to choose the best glasses for your head size and facial features. To understand these numbers we have to check them.

The first number you see is a two-digit number, which indicates the diameter of the lenses. Usually, in most eyeglass frames, the number is between 40 and 62 mm. If you look at your eyeglass frame or that of a family member, you will see that the first number starts at 40 and continues to 62.

The second number is a two-digit number, which is the size of the eyepiece bridge, which connects the two lenses, and is the distance between the two lenses. The location of Aynak bridge is on the nose and its size is about 13 to 24 mm.

Finally, the third number is a three-digit number and indicates the part of the eyeglass frame that is placed on the ear. The size of the glasses frame is between 120 and 150 mm. This part of the eyeglass frame along with the eyeglass bridge helps to put the glasses on the person’s face easily. These numbers may not be engraved on the handle or frame of your glasses, in which case you can take these measurements yourself.

And these numbers may be erased or so small that you have to use a magnifying glass to see and read them. If you want to know which part of the frame represents what size, you can easily measure them using a millimeter ruler.

Tips on using glasses

Eyeglasses are one of the best-selling accessories in the fashion and style market and ishop online store, which has a collection of accessories such as eyeglass straps, eyeglass sprays, boxes, etc. In order for your glasses to remain as new and clean as the first day during use, it is necessary to pay attention to some points. When you use glasses on a daily basis, fingerprints, dust, water stains, etc. will definitely remain on the glass. In this case, you should clean your glasses with a special tissue. It is very important to clean the parts of the glasses, such as the handles, that come into contact with your skin on a daily basis.

Be sure to use both hands when removing the glasses, as using one hand will damage the screws over time. Also, when you are done with the glasses, you should keep them in the glasses case, and don’t put them in your hair or in your bag. When the lens of your glasses gets dirty and contaminated, you should wash your glasses gently with lukewarm water and non-fat liquid soap. After washing, dry the glasses with a special tissue. Also, for this purpose, you can get lens cleaning spray from pharmacies.

The model number of the glasses to identify the original glasses

All original sunglasses and prescription glasses have a number on them, and it doesn’t matter if you bought the product in a store or online, your product must have a model number on it. This number is usually written on the frame of the glasses. Of course, fake glasses may also have this number, but you cannot find the product by searching for the model number of the glasses on the manufacturer’s website.

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