Sunglasses are measured primarily by three key dimensions, all given in millimeters, which help determine their fit and size. These measurements are crucial when choosing the right pair of sunglasses.
Understanding Sunglasses Measurements
The sizing of sunglasses is based on three numbers:
- Lens Width: The horizontal width of one lens at its widest point. This is usually the most critical measurement for fit.
- Bridge Width: The distance between the two lenses, measured at the narrowest point. This affects how the sunglasses sit on your nose.
- Temple Length: The length of the arm of the glasses, from the hinge to the end. This determines how far the arms extend behind your ears.
These three measurements are commonly displayed in the following format on the frame, for example 52-18-140:
| Measurement | Description | Example (mm) |
|---|---|---|
| Lens Width | The width of one lens at its widest point. | 52 |
| Bridge Width | The distance between the two lenses, measured at the narrowest point. | 18 |
| Temple Length | The length of the arm of the glasses, from the hinge to the end. | 140 |
Why these Measurements Matter
These dimensions are important because:
- Comfort: Correct lens width ensures good vision coverage and that the frame isn’t too wide or narrow on your face.
- Stability: Proper bridge width is essential for the sunglasses to sit comfortably on your nose without slipping.
- Fit: Temple length is needed to make sure that the glasses fit behind your ears comfortably and stay in place.
According to the reference, when shopping, the lens width is usually the most important measurement to focus on for fit.
How to Find these Measurements
These measurements are often printed inside the temple arm of your sunglasses or on the frame. If these numbers are not readily visible, you can:
- Check the manufacturer’s website for size details.
- Visit an optician or eyewear store for professional measurements.
