CAR24
£ 39
A unisex soft square frame in black, black/green, black/pink, burgundy or havana.
- Size: 51-17-140 mm, lens depth 38 mm
- Colours: Black, Black/Green, Black/Pink, Burgundy, Havana
- Case & microfibre cloth included
- Lenses made in our UK labs
- Free delivery
- Free 30-day returns
About the Carlton CAR24
CAR24 Prescription Glasses
A softly squared frame is one of the most versatile shapes around. The CAR24 is a unisex full-rim soft square frame, sized 51-17-140, in Black, Black/Green, Black/Pink, Burgundy or Havana. You can order it with single vision, varifocal or bifocal lenses made to your prescription. It belongs to the Carlton collection.
Choosing your CAR24 colour
Black. Black is a deep, solid black. It defines the eyes and goes with every outfit you own.
Black/Green. In Black/Green, the frame is black and green. It looks sharp at work and just as good with jeans at the weekend.
Black/Pink. The Black/Pink version is black and pink. Black suits every hair colour and frames the face with confidence.
Burgundy. Burgundy is a deep wine red. It is a grown-up way to wear colour.
Havana. The Havana version is tortoiseshell. It warms up the face and sits nicely alongside camel, olive and cream.
If you are stuck between two, choose the one closest to the colours you wear most. You can always add a second pair later.
Shape and style
The softened corners suit round, oval and heart-shaped faces, adding a little shape without looking severe.
If you want a frame you can put on in the morning and forget about, the CAR24 is a strong choice.
How to wear it
Choose the colour closest to what you wear most and it will go with almost everything.
How it fits
| Brand | Carlton |
|---|---|
| Colours | Black, Black/Green, Black/Pink, Burgundy, Havana |
| Frame size | 51-17-140 mm (lens width, bridge, arm length) |
| Lens depth | 38 mm |
At 51mm per lens, it sits in the medium range, the most common adult fit. The 17mm bridge is average. The 140mm arms are a standard length. Across the lenses and bridge it measures about 119mm.
Not sure about sizing? Compare these numbers with the ones on the inside arm of a pair that fits you well. A difference of two or three millimetres or less usually means a similar fit.
Lens options for the CAR24
Pick the lenses that match your prescription:
- Single vision: one prescription across the whole lens, for distance, reading or the computer.
- Varifocal: near, intermediate and distance in one lens, with no visible line.
- Bifocal: a separate reading segment in the lower part of the lens.
- Ready readers: simple magnification if you just need help with close work.
The 38mm lens depth gives varifocal lenses plenty of room. Want lighter lenses? A high-index lens is thinner than standard plastic. Pair it with an anti-reflective coating for less glare when you drive after dark.
Ordering online is simple
You need a valid prescription from your optician and your pupillary distance (PD), the distance between your pupils. Many opticians include your PD on the prescription; if yours does not, just ask for it. Choose your colour, pick your lens type, enter your details and add any lens upgrades. If you are unsure about size, compare the measurements above with a pair you already wear.
How your glasses are made
Every pair is made to order in our own UK lab. Your lenses are cut to your prescription, fitted into your CAR24 and checked by our technicians before they are sent out.
Looking after them
Clean your lenses with a microfibre cloth rather than your jumper, keep them in their case when they are in your bag, and do not leave them on a sunny car dashboard. Our lens care guide has more tips.
Questions we often get
Can I get varifocal lenses in the CAR24?
Yes. The 38mm lens depth gives varifocal lenses enough height for all three vision zones.
Can I wear the CAR24 for driving?
Yes. Single vision or varifocal lenses work well for driving, and an anti-reflective coating helps cut glare from headlights at night.
What size is it?
It is size 51-17-140: 51mm lens width, 17mm bridge and 140mm arms, a medium fit.
What is havana or tortoiseshell?
A mottled pattern of browns and ambers, a classic eyewear finish.
Where are my lenses made?
In our UK optical lab. They are cut to your prescription, fitted into your frame and checked before they are sent out.
Want to compare? See more prescription glasses.
Lens prices
Lens types
| Lenses | Single Vision | Bifocal | Varifocal |
|---|---|---|---|
| 1.5 Index (standard) | FREE | ÂŁ40 | ÂŁ69 |
| Transitions | ÂŁ50 | ÂŁ90 | ÂŁ119 |
| Sunglasses tint | ÂŁ10 | ÂŁ50 | ÂŁ75 |
| Blue light filter | ÂŁ30 | ÂŁ70 | ÂŁ99 |
Basic 1.5 Single Vision lenses with anti-reflection coating are included in the frame price.
Thinner lens upgrades
| Lens index | Single Vision | Bifocal | Varifocal |
|---|---|---|---|
| 1.6 + HMC | ÂŁ30 | ÂŁ70 | ÂŁ95 |
| 1.67 + HMC | ÂŁ50 | ÂŁ90 | ÂŁ119 |
| 1.74 + HMC | ÂŁ70 | – | ÂŁ135 |
Higher index lenses are thinner and lighter, and are worth it for stronger prescriptions. All include an HMC coating.
Frame details & size guide
Specifications
| Brand | Carlton |
|---|---|
| Color | Black, Black/Green, Black/Pink, Burgundy, Havana |
| Bridge Size | 17 |
| Eye Size | 51 |
| Lens Depth | 38 |
| Temple Length | 140 |
How to read frame sizes
The three numbers (for example 48-20-140) are the lens width, the bridge and the arm length in millimetres. Compare them with a pair you already own.

Delivery, returns & what is included
Delivery
- Single Vision: 5-7 working days
- Bifocal: 7-10 working days
- Varifocal: 7-10 working days
- Dispatched within 48 hours by tracked Royal Mail service
Delivery is free. Your estimate for your country is shown at checkout.
Returns & exchanges
Free 30-day returns or exchanges. If your glasses are not right for you, we will make it right.
What is included
- Anti-reflection lenses included
- Case and microfibre cloth
- Lenses made in our UK optical lab
- All frames CE marked
- Worldwide delivery
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