Single-Vision Lenses
The right size frames
With thousands of frames to choose from, how do you choose a pair of glasses that will fit correctly? On this page, you'll learn two methods for choosing a great-fitting frame, without having to try them on first. These tips are extremely handy if you are considering purchasing your next pair of glasses on the internet. If you do decide to buy online, it is advisable to choose a supplier that offers an exchange or return service, just in case!
Calculate Your Frame Width
Determining your frame width is crucial for selecting glasses that fit well and look great. It's a simple step that guides you to the ideal eyewear size for optimal comfort and style. Follow these steps for a perfect fit:
Measure the width of one lens to find your eye size. Multiply your eye size by 2.
Measure the width of the bridge (the part over your nose).
Add 11mm to account for the frame's arm width from the front.
Example: If your eye size is 50mm and your bridge width is 20mm:
Double Eye Size: 50mm x 2 = 100mm
Add Bridge Width: 100mm + 20mm = 120mm
Add for Arms: 120mm + 11mm = 131mm
Your ideal frame width is 131mm(+ or - 4mm for flexibility).
Our Helpful Sizing Tool
| Size | Measurement (mm) |
|---|---|
| Extra Small | 115-125 |
| Small | 125-135 |
| Medium | 135-145 |
| Large | 145-150 |
| Extra Large | 150-155 |
Our sizing tool simplifies the process of finding the perfect glasses by categorising them into four sections: Extra Small, Small, Medium, Large, and Extra Large. With just a few clicks, you can find the size that will provide the best fit and comfort. Our tool helps us deliver glasses that fit well and look great, and it's available under the "size" dropdown on our catalogue pages. If you're looking for something more specific, you can adjust the sizing sliders under the "Advanced sizing" option. Find your perfect pair with ease using our sizing tool.
Finding your frame size
When selecting a new pair of glasses, it's important to know your frame size to ensure a comfortable and proper fit. This diagram illustrates where to find the size measurements on your current pair of glasses. Typically, these measurements are located on the inside of the arm and are listed in millimeters. The first number represents the lens width (Eye size), the horizontal diameter of one lens6. The second number is the bridge width, the distance between the two lenses. Lastly, the third number indicates the length of the arm. To find the best fit, compare these measurements to the size specifications of the new glasses you are considering.
The number on the left-hand side of the square box is the "Eye Size" and is sometimes referred to as the "A" measurement. This is the width of the lens at its widest point measured in millimetres (see A in the diagram below).
The number on the right-hand side of the square box is the "Bridge Width" and is sometimes referred to as the "DBL" (distance between lenses). This is the distance between the two lenses measured in millimetres.
You may also find a third, three-digit number. This is the "Arm Length". The arm length is measured in millimetres from the attachment screw to the tip of the arm. The measurement is made before the bend is put into the arm.
Lens Depth
You may have noticed that thus far, we have not mentioned the Lens Depth. This measurement will largely depend on the style of frame you decide upon and in many cases, is not required to identify a good-fitting frame. However, if you are choosing glasses for bifocals or varifocals, be mindful that the shallower the frame is, the less area there will be available for the reading element of your lens.
When purchasing Varifocals we recommend a Lens Depth of at least 27 millimetres. For this reason, at Spex4Less, Varifocal lenses will not be available to purchase on frames with a lens depth of fewer than 27 millimetres.
Quality Single-Vision Glasses at Fair Prices
We understand the importance of clear vision. That's why all of our glasses come standard with single-vision lenses. But vision isn't just about clarity; it's about lasting quality. For those who want an added layer of protection and enhanced performance, we provide a selection of protective coatings. These coatings are designed to ensure your lenses withstand daily wear and tear while optimizing clarity. Learn more about our lens coatings.
Frequently Asked Questions
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Single vision lenses can be enhanced with key coatings: a honeycomb anti-reflective coating for reduced glare and clearer vision, scratch-resistant for durability, blue light filtering to ease eye strain from screens, and UV protection for outdoor safety. These enhancements make the lenses more functional and durable, suitable for various lifestyle needs.
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Single vision lenses are designed to correct a single field of vision, either nearsightedness or farsightedness. They have the same lens power throughout and are the most common type of prescription eyeglasses for people who need vision correction for one distance.
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It’s simple! First select a frame you like from our extensive glasses collection. Next, click the ‘Select Lenses’ button and choose your lens type. Finally, upload your prescription if you have it. If not, don’t worry you can send this to us later.
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Yes, standard single vision lenses are included in the price of glasses!