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Size guide
Figuring out which glasses size is right for you can seem complicated, especially online. But don't worry!
Whether you're looking for your first pair or want to find out the size of your current frames, we're here to help.
With a few simple steps, we'll guide you to find the perfect fit for comfort, style, and crystal-clear vision.
Glasses measures
If you already have a pair of sunglasses or eyeglasses that fit you well, you can use the measurements printed inside the temple to easily find the most suitable size.
You'll find a sequence of numbers similar to this:
RB2140 901 50□22 150
- RB2140 901 → model and color code
- 50 → lens width
- 22 → bridge width
- 150 → temple length
All measurements are expressed in millimeters (mm).
LENS WIDTH
The lens width, commonly also called lens size or eye size, indicates the horizontal dimension of a single lens at its widest point. This measurement affects the proportions of the frame and the coverage of the face.
BRIDGE WIDTH
The bridge is the part of the frame that connects the two lenses and rests on the nose. Its width affects comfort, the stability of the glasses, and how the frame fits the face.
TEMPLE LENGTH
The temples are the side parts of the frame that rest on the ears and hold the glasses in place. Their length is measured from the center of the hinge to the end tip of the temple and helps ensure a stable, comfortable fit.
how to find the right size
If you don't have your glasses on hand or this is your first purchase and you don't know the size, you can easily find it out using a credit card or similar card.
- Position the card vertically at the center of your nose.
- Check where the edge of the card reaches in relation to your eye.
- Compare the alignment with the guide below to find the size best suited to your face.
The position of the card's edge in relation to your eye will help you understand which size is generally best suited for you.
SIZE S
Lens up to 47 mm
If the edge of the card extends past the outer corner of your eye, you probably have a small size.
Recommended for petite faces or delicate features.
SIZE M
Lens from 48 to 51 mm
If the edge of the card lines up with the outer corner of your eye, your size is probably medium.
The most common and versatile choice.
SIZE L
Lens 52 mm and up
If the edge of the card ends before the outer corner of your eye, you might need a wide size.
Ideal for wider faces or for those who prefer a more oversized fit.
Where to find the size on Vistaexpert
On Vistaexpert, the glasses size is shown on the product page, just above the purchase buttons, under Size.
The size can be displayed in two ways:
- International size, for example Size M (60-14), where 60 indicates the eye size (lens width) and 14 the bridge width.
- Eye size only, for example 52 mm, which represents the lens width.
If you'd like to better understand how the international size works and how to choose the one best suited to you, check out the dedicated section below.
To find all the frame measurements, check the Product Dimensions section, where the lens width, bridge width, and temple length are listed in detail, expressed in millimeters.
Do you need help?
Frequently asked questions about sizes
The simplest way is to use a pair of glasses you already wear and that fit you well, comparing their measurements with those listed on the product page.
If this is your first purchase, you can use the credit card method or refer to the international size (XS, S, M, L, XL) when available.
The international size indicates the overall width of the frame, measured from hinge to hinge.
It doesn't refer to the lens width or bridge width, but to the total size of the glasses on the face.
In general:
- XS - XXS → narrower frames, ideal for small faces.
- S → compact frames.
- M → standard fit, suitable for most people.
- L → wider frames.
- XL - XXL → extra large frames, designed for wider faces.
This classification lets you easily compare different models without having to interpret each individual measurement.
No. Not all manufacturers provide this information. When available, you'll find it on the product page under Size.
If it isn't indicated, you can refer to the frame measurements (eye size, bridge, and temple length) or use the credit card method to find the most suitable size.
Each manufacturer uses its own classification for frame width. For this reason, the same size (for example M) may correspond to slightly different values depending on the brand.
Because the international size depends on the overall width of the frame, not just the lens size.
Two models may, for example, have a 52 mm eye size, but a different shape, a wider bridge, or a different structure. As a result, the overall width of the frame can vary, and the manufacturer may classify them under different international sizes.
For this reason, when available, the international size is the most reliable reference for understanding how a frame will fit.
A correctly sized frame should:
- rest comfortably on the nose without pinching or slipping;
- have the lenses well centered relative to the eyes;
- have temples that rest comfortably on the ears without exerting pressure;
- stay well aligned on the face;
- leave no visible marks or cause discomfort after wearing it.
Yes, if you'd like a different effect. A slightly larger frame gives a more oversized look, while a smaller one is more discreet. If you want a fit similar to your current glasses, we recommend choosing the same size or very close measurements.
need a second opinion?
Don't leave your comfort to chance. If you're unsure between two sizes, contact our customer service at support@vistaexpert.it who will be happy to guide you in choosing the frame best suited to your needs.