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When it comes to choosing the best pair of blue light glasses, it’s all about the fit! Choosing a pair of glasses that properly fit your face’s unique size and shape ensures they flatter your face, which will encourage you to wear them and protect your eyes from blue light exposure.
You’ll notice when you shop our frames that there are a few key measurements provided in the listing for each style. Thankfully you don’t actually have to go to medical school in order to understand these glasses dimensions, and choosing the perfect pair of blue light glasses doesn’t require a trip to a physical store or office. Once you find out how to measure frames, you can browse our catalog of frames, pick your favorite style, and order the perfect pair of blue light glasses.
Knowing how to measure the parts of glasses is key to choosing the right pair of frames for your face. Inside the arm of most every pair of glasses, you’ll find a string of numbers on the glasses that looks something like this: 15 140 53. If you already have a great fitting pair of glasses at home, you’re in luck! Those glasses dimensions are what you need to look for when shopping for a pair of blue light glasses that fit you well.
Here’s what these glasses measurements refer to:
The lens diameter of a pair of glasses refers to the width of the lens, in millimeters, measured from the bridge. The size of your lens is determined by the frame style, but it’s also up to your personal preference of lens size, too!
The bridge width measurement on a pair of glasses is the gap between the lenses above your nose, and it’s important for this area of the glasses to fit well. If the width is too short, your glasses may scrunch up on your nose, but if it’s too long, the glasses won’t be stable on your face.
The temple length refers to the arms of your glasses, and usually comes in one of three sizes: 135mm, 140mm, or 145mm. When worn, the arms of the glasses should be long enough to sit comfortable over the tops of your ears.
When you don’t have a pair of glasses with printed measurements on hand, the best place to start is with a pair of glasses that fit you well already. You can easily take your own measurements with a millimeter ruler or clothing measuring tape. Here’s how to measure glasses correctly:
Using your ruler or measuring tape, measure the lens of your glasses horizontally at its widest point, ensuring the lens width accommodates your pupillary distance, which essentially comes down to making sure the center of your eyes aligns with the center of the lenses. Lens widths often range from about 40mm to 60mm in size.
Glasses Size Chart
Small Eyes |
40-48mm Lens Width |
Medium Eyes |
49-54mm Lens Width |
Large Eyes |
55-58mm Lens Width |
Extra-Large Eyes |
Above 58mm Lens Width |
To get your bridge width measurement, measure horizontally across the length of the bridge of the glasses, from the inner edge of one lens to the inner edge of the other. If you have a narrow bridge or close-set eyes, you’ll want the bridge width of your glasses to be lower (15mm to 18mm). On the other hand, if you have wide set eyes or a wider bridge, you might opt for a style with a bridge width of 18mm to 22mm.
To get an accurate glasses arm length measurement, measure from the hinge of the glasses, which is where the arm connects to the front of the frames, to the area where the arm starts to bend at the ear. Then, measure from the top of the bend to the bottom tip and add those two sections together for the total temple length of the glasses. Typically, this number falls in a range of 120mm-150mm long.
When shopping for glasses, it’s also important to consider the shape of your face! If you don’t know your face shape already, grab a mirror and take a close look at your facial features to determine which category you fall in. Then, you’ll know exactly which frame styles will look the absolute best on you!
Oval face shapes are slightly longer than wide, with the cheekbones being the widest part. The jaw and forehead are rounded, and there are no sharp angles. If you have an oval shaped face, lucky you—you can easily pull off most any frame style!
Your Perfect Foor Eyes Frames: Baffle, Ballast, Efficacy, Kelvin, Bayonet
Round shaped faces feature sides that curve slightly outward, with wide cheeks and a rounded chin. Round faces pair best with a bit of contrast—try angular glasses with square or rectangular frames to add the illusion of length to your face.
Your Perfect Foor Eyes Frames: Baffle, Cornice, Halide, Louver, Bayonet
Heart shaped faces feature a wider forehead and high cheekbones, which narrow down to a pointed chin. The best frames are those which are slightly wider than the forehead to add more balance to your facial features. A rimless style can even help soften angular features if you desire.
Your Perfect Foor Eyes Frames: Ballast, Argon, Valance, Opaque, Tochiere
If you have a square shaped face, it means your forehead, cheekbones, and angular jaw are all the same width. Glasses that sit high on the nose can add length that flatters your face, while round frames can soften your features and add contrast.
Your Perfect Foor Eyes Frames: Kelvin, Lumen, Canopy, Mogal
Foor Eyes carries a variety of on-trend blue light glasses sizes suitable for every face. You can even use our virtual try-on feature to instantly see how styles will look on your face! For risk-free shopping, Foor Eyes purchases are also backed by our 14-day return and exchange policy.