GLASSES MEASUREMENTS
& FRAME SIZES

Finding the right frame size is crucial for ensuring the
perfect fit and comfort of your glasses. Proper frame
measurements not only enhance your visual experience
but also contribute to your overall style. To help you make
informed choices, we have created a comprehensive
frame measurement and size guide.


Our guide will help you find the ideal glasses, whether
you're buying glasses for the first time or replacing an
old pair.

FINDING YOUR PERFECT FIT

Finding the perfect fit for your glasses is crucial for comfort and style. Our comprehensive size guide will assist you in determining the right frame measurements to ensure an ideal fit.

Measurements such as width, bridge, and temple length play a significant role in finding the perfect frame size. Our instructions and expert guidance will help you make informed choices when selecting your glasses. Find your ideal glasses and enjoy a perfect fit that complements your unique features.

Frame Sizes: The Numbers

Lens Width

This is the horizontal width of each lens, measured at its widest point. Also called eye size, it typically ranges from 40 mm to 60 mm.

Bridge Width

This is the distance between your two lenses. In short, the bridge width is the space where your frames fit against your nose. The bridge size ranges from 14 mm to 24 mm.

Temple (Arm) Length

This is the length of the temple from the hinge to the temple tip, including the bended part that sits on your ear. The arm length is typically 120 mm to 150 mm long.

DECODING GLASSES MEASUREMENTS

You can see some numbers printed or engraved on the inside of your glasses temples (arms) or behind the nose bridge area. Use 46-21-140 as an example. The first number, 46, represents the lens width; the second number, 21, refers to the bridge size, while the last number, 140, is the temple length.

Sometimes there is a fourth number that refers to the lens height. These numbers come in handy and can act as a reference for you to pick the frames that best fit you.

We classify our frames as narrow (below 130 mm), medium (130 - 140 mm), and wide (above 140 mm) according to the frame width. Please select your size according to the following width standards. You can also use the 'filter' function on category pages to select your frame size.

Other Glasses Dimensions

The above three measurements are the most important when you’re learning how to read glasses sizes. Opticians and glasses designers deal with a whole slew of other glasses measurements, too, but laypeople don’t often encounter them.

There are two more measurements you might want to know as you search for a pair of glasses. These usually aren’t displayed on the frame, but they can still factor into fit and performance.

Lens Height

Lens Height

Lens height is the vertical height of the lens from its lowest to highest point. It’s an especially relevant measurement when you’re getting multifocal or progressive lenses, which need a certain amount of space for their different visual zones. Typical range: 32–38 mm.

Frame Width

Frame Width

The frame width is the overall width of the frame, measured from endpiece to endpiece. When shopping for glasses, a general rule is to choose frames that are not significantly wider than your face, with centered eyes in the lenses. Typical range: 125–150 mm.

FACE SHAPE GUIDE: DISCOVER YOUR PERFECT LOOK

Discover your true style potential with our comprehensive Face Shape Guide. Find the perfect glasses that complement your unique facial structure. Enhance your natural features and exude confidence in every look.

Explore tailored tips and tricks for your face shape: square, round, oval, heart, or diamond.

Explore Face Shape Guide

DOES SYGHT OFFER THE LIGHTWEIGHT FRAMES?

We love the feeling when cool frames fit perfectly on our faces! That's why Syght blue light-blocking glasses have been carefully designed to be highly adaptable, lightweight, and extremely comfortable. You'll forget you're even wearing them!

Our lightest frames have been made with an ultra-light material, TR-90, that weighs only 0.35 oz. (10gr.). If you want an ultra-light feeling, check out our Light-as-air collection!

Syght offers Frames with Adjustable Nose Pads as well.

READY TO IMPROVE YOUR WELL-BEING?

The blue light emitted from our screens can harm our sleep, so we must take steps to protect ourselves.

Syght blue light glasses are a great solution, giving us a little extra peace of mind while encouraging the digital lives of those around us with extra comfort and style!

SHOP EYEGLASSES SHOP BLUE LIGHT GLASSES

BEST SELLERS

A Perfect Blend Of Style And Comfort.

Blue
L

Ellen

$27.00
Rectangle frame design with TR metal construction Sober yet cool look Classic and versatile style Lightweight and comfortable for all-day wear Suitable for both professional and casual occasions Elevate your...
French Bistre
L

Cello

$29.00
Square shape with a simple and understated design Subtle and soothing color shades for a calm and sophisticated look A versatile frame that pairs well with any style or outfit...
Matte Black
Syght Glass
L

Elite

$23.00
Simple rectangle frame design Sober look colors in the temple Versatile and classic style Comfortable fit for all-day wear Durable construction for long-lasting use Express your personal style with different...
Emerald
L

Python

$28.00
Aviator rectangle-shaped frame for a classic and professional look Constructed with a combination of TR and metal materials for durability Sleek design and timeless shape for a sophisticated appearance Versatile...
Shiny Black
45% OFF Hot
M

Pacific

$36.00From $19.80
Eye-catching, colorful design with a classic touch Timeless wide, rectangular frame with a full-rim TR90 face front and mixed material arms Modern details for a slim, angular silhouette Upgrade your...
Translucent Pink
Hot
M

Siner

$27.50
Square frame with stud accent Crystal touch look for an elegant appearance Made from high-quality TR material for durability and comfort Bold design that makes a statement Trendy and fashionable,...
Onyx Golden
13% OFF Best Seller
L

Angular

$27.00$23.50
Geometric design with a colourful browline TR plus metal frame for durability Bold and fashionable look Perfect statement eyewear Vibrant colours for added style
Shiny Gradient Red
48% OFF Best Seller
M

Aurora

$38.00From $19.80
Add color and personality to your look with the Aurora eyeglasses Durable TR90 construction and straight temples, ideal for use with headphones Improves sleep and overall health Upgrade your style...
Matte Black
48% OFF
Syght Glass
Hot
L

Tesla

$38.00From $19.80
Make a statement with the Tesla blue light glasses Square frame design with stylish matte finish and tapered temples for a timeless touch Lightweight and comfortable with TR90 construction and...
Onyx Golden
34% OFF
M

Zenith

$32.00From $21.00
Elevate your style and improve your vision with Zenith browline eyeglasses Designed for ultimate comfort with adjustable nose pads and crafted from lightweight TR90 frames Retro square lenses and double...
Rose Gold
22% OFF
Syght Glass
M

Fortune

$30.00$23.50
Elevate your style with Fortune eyeglasses: Featuring an elegant metal frame that adds a touch of sophistication to your outfit Comfortable for all face shapes: The adjustable nose pads make...
Peach
L

Cascade

$34.50
Make a bold fashion statement with this square frame that exudes confidence and style. Crafted from high-quality acetate, these frames are designed to provide both durability and comfort for long-lasting wear....
Matte Black
21% OFF
L

Bolt

$28.00$22.00
Eye-catching design: Bold and durable PC construction with a matte finish Classic look: Rectangular lenses and textured details in a lighter blue color Comfortable fit: Molded nose pads and lightweight...
Multi
L

Coil

$28.50
Wide frame design for a bold and statement-making look Vibrant and colorful options to express your unique style Made with high-quality TR material for durability and comfort Suitable for those...
Matte Black
38% OFF Hot
M

Micron

$32.00$19.90
Upgrade your eyewear game with Micron - the ultimate in style and technology Classic square frame with full-rim face front and multiple color options Specially designed as blue light glasses...