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Prescription Lenses 30% OFF
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2. Photochromic Lenses 10% OFF Added
3. Blue Light Blocking 10% OFF Added
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How to Fill Out PrescriptionHow to Measure Your PDFrames for Your Face ShapeHow to Measure Frame SizeHow To Adjust Your GlassesWhich Lens Type is Right for MeBlue Light Protection Lens for MeLens Index & CoatingsHow To Order
How To Measure Frame Size
Choosing the right size is the key to ensuring you're getting the right fit. If you want to find a suitable size, you can check the size of your current frame, or measure your current frame yourself.
Our Frame Sizes
Due to the different measurements methods, the measurements printed on the inside of the temple arm may vary from those showing on our website. We suggest you measure your frame dimensions to make sure your new glasses correctly fit your face.
| Size | Frame Width(mm) |
| Narrow | 127mm |
| Medium | 128mm - 136mm |
| Wide | ≥137mm |
If the numbers are 49-21-145, your frame dimensions are:49mm lens width21mm bridge width145mm temple arm length the most important dimension, the frame width, will not be printed on the temple arm. Follow our guide below to measure the frame width and ensure your new glasses are the right size for your face.
Frame Width
Measure horizontally across the entire front of the frame. Include any lug or hinge pieces that stick out on the sides.
Bridge Width
Measure horizontally, at the top of the bridge, from the edge of one lens to the other.
Lens Height
Measure the lens vertically, at its tallest point. For bifocal or progressive prescriptions, the lens height must be at least 30mm.
Temple Length
Measure from the hinge, where the arm connects in the front, to the spot where the arm begins to bend down around the ear. Then measure from the top of the bend to the bottom tip. Add the two sections together for the total temple arm length.
Lens Width
Measure the lens horizontally, at its widest point. Make sure the lens width accommodates your pupillary distance so that your eyes align with the “optical center” of the lens.
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