The Perfect Fit: Your Ultimate Guide to Eyeglasses Frame Measurements
Buying eyeglasses online shouldn't be a guessing game. When buying glasses online, choosing the right frame size is the key to comfort, style, and perfect vision. A properly sized frame will look better, feel secure, and prevent slipping or uncomfortable pressure points.
At Vionglasses, we make it simple to find your ideal fit with clear frame measurements and detailed product information on every page. Here is your essential guide to understanding frame measurements, ensuring your next pair from VionGlasses fits perfectly right out of the box.
Find Your Frame Measurements: Two Simple Ways
You don't need to be a professional optician to find your ideal size!
1. Reference Your Current Glasses (The Easiest Way)
Most glasses, especially on the inside of the temple arm or the bridge, have three key measurements printed on them. These numbers usually appear in a sequence, like 50–20–145, and are measured in millimeters (mm).
| No | Measurement Sequence | What it Means |
| A | 50 (First number) | Lens Width |
| B | 20 (Second number) | Bridge Width |
| C | 145 (Third number) | Temple Length |
💡 Tip: As long as the specifications of your new frame are within 2–3mm of your current frame’s measurements, you should achieve a comfortable and proper fit.
2. Measure Your Face (If You Don't Have a Pair)
If you don’t have a current pair, you can measure your face or use a ruler to measure a pair that fits you well. You can use our detailed size information listed in the Frame Details section on every Vionglasses product page.
Understanding the 5 Key Frame Measurements
Each part of your glasses frame plays a role in fit and comfort. Every VionGlasses product page includes the full frame specifications in the Frame Details section below the image. Here is exactly what those numbers mean:
1. Frame Width
Measure the frame horizontally from hinge to hinge to find the total width.
This determines how the glasses will sit across your face, a perfect width ensures the frame isn’t too tight or too loose.
2. Lens Width
The lens width is the horizontal distance across each lens at its widest point.
It affects both the style and field of vision. Larger lenses offer wider coverage, while smaller ones create a sleek, modern look.
3. Lens Height
This is the vertical measurement at the tallest part of the lens.
4. Bridge Width
The bridge width measures the distance between the two lenses, usually at the narrowest point.
A proper bridge fit keeps the glasses comfortably positioned on your nose without slipping or pinching.
5. Temple Length
The temple length (or arm length) includes the part that bends behind your ear.
It affects how securely the glasses stay on your head, too short and they’ll pinch; too long and they’ll slip.
💡 Final Tip: Always Check Before You Buy
Before placing your order on Vionglasses, always review the Frame Details section on the product page. Choosing the correct measurements is the best way to ensure your new VionGlasses frames deliver the perfect fit and comfort you expect. And choose lightweight frames if you wear glasses all day.
At Vionglasses, we provide accurate frame measurements and expert lens fitting for every order. Whether you’re looking for prescription glasses or stylish frames, our goal is to ensure your eyewear fits perfectly, comfortably, and confidently.
👉 Explore our collection today and find your ideal fit at Vionglasses.