Eyeglasses | Optical Centre Smartbuyglasses UK

Understanding Glasses Measurement

In the past, shopping for a pair of eyeglasses involved tedious trips to eyewear stores, fitting frames, and perusing through a few shelves of glasses. 

That’s not so much the case any more; online retailers like SmartBuyGlasses have been established for years and, as a result, there is a near-unlimited amount of colors, sizes, and designs of eyewear on sale.

Though we have our groundbreaking Virtual Try-On tool, it’s still very important to understand prescription glasses measurements and frame dimensions. Check out our size guide to find out what glasses measurements you need to consider before buying a new frame.


What Do the Measurements on Glasses Mean? 

Engraved at the temples are the glasses measurements. They are represented by three consecutive numbers that are separated by dots, dashes or vertical bars. They represent the lens width, bridge size and temple arm length respectively. Some frames even offer a fourth number, which refers to the height of the frames. All these glasses measurements are measured in millimeters (mm).


Lens Width

This refers to the width of the lens, which must be measured horizontally. This typically ranges from 40 mm to 60 mm. Doctors also call it the ‘eye size’. When you purchase a pair of eyeglasses or sunglasses from SmartBuyGlasses, you’ll usually see this measurement presented as the size.


Bridge Size

This is the distance between the two rims or lenses of the eyeglasses where the nose pads are located. It typically ranges from 14mm to 24mm.


Temple Arm Length

This refers to how long the temple is. Measure your temples from the hinge to the very tip and you’ll come up with the temple length. Normally, it's between 120mm and 150mm.


Lens Height

This is the vertical measurement of the eyeglass lenses. This is important for bifocal lenses and progressive lenses.


Frame Width

The question of ‘how to measure eyeglass frames?’ falls into this section. The frame width is the horizontal measurement of the frames, including hinges or any designs that stick out at the sides.


If you’re wondering what size glasses will fit you, it’s much easier if you already have an old pair of eyeglasses that fits you well. Just take the required measurements and provide 2-3 mm allowances in every aspect except for the bridge size.


I’ve Measured My Glasses and I’m Looking for Some New Ones. What Now?

Congratulations. You’ve got the hardest steps out of the way. Now, it’s time to select a pair of glasses - or even sunglasses - that’s right for you. At SmartBuyGlasses we’re proud to host a whole range of luxury brands, value models, cutting-edge technologies and more. If you’ve seen a pair you like the look of, but aren’t sure how they’ll look ‘on-face’, check out...


Virtual Try-On

SmartBuyGlasses’ revolutionary Virtual Try-On tool is an advanced online solution to the problem of not being able to check out a pair of glasses in-hand. It’s simple and free! See what you look like wearing different designer sunglasses or eyeglasses from home in just 2 easy steps.

Step 1: record your selfie video. We'll walk you through a simple process and show you how to use your desktop or mobile camera to record a quick, five-second selfie video.

Step 2: try on glasses online! Go to the brand page of any glasses you’d like to virtually try on. Then, filter by ‘virtual try-on’ in the special features option. You can see yourself wearing any of the glasses that appear! We have over 5,000 pairs of eyeglasses and 6,000 pairs of sunglasses just a few clicks away from appearing on your face!

Given the current pandemic, going to your local opticians’ or eyewear store isn’t so easy at the moment. Virtual Try-On eliminates the stress of making your mind up in person, the time wasted going to and from the store, and the typically high costs of visiting a brick-and-mortar shop. It really is the perfect socially distanced try-before-you-buy!


Arise HD Prescription Lenses

SmartBuyGlasses offers groundbreaking durability, pristine clarity and perfect vision - all in the same lenses. Arise HD Clarity Prescription Lenses are made for the everyday wearer, but also offer advanced protection making them suitable for any adventure.

The Arise Clarity Lens Collection comes packed with protective elements to provide you with an unbeatable pair of prescription glasses. From scratch resistant and anti-reflective coatings to UV 400 and superhydrophobic protection, these lenses are guaranteed to keep your eyes comfortable in any situation. 

These lenses are also aspheric, making them thinner and lighter than many other prescription lenses. These high performing, durable lenses feature an innovative lens technology that provides optimal clarity and comfort in the urban jungle.

Simply choose any frames you like, enter your prescription and select Arise Collective for your lens type. Let's get started!


zFORT® Blue Light Blocking Glasses

Blue light is a potentially harmful form of light. While it is naturally emitted by the sun, electronic devices (upon which we’re spending more and more time every day) are also high-level producers. Blue light rays at a wavelength between 415nm - 455nm can damage your retinal cells, which may lead to premature eye ageing and vision problems in the future.

Our exposure to these harmful light rays may also cause a range of other health problems, including poor sleep (according to a 2012 Harvard Medical School study). Find out more about how to protect your eyes from blue light with anti blue light glasses from zFORT®.


If you want to know more about what we offer at SmartBuyGlasses, check out the rest of our Optical Centre. It's chock full of articles, FAQs and more about the ins and outs of the world of eyewear. 

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