CAR41
£ 39
A unisex round frame in black, gold or dark gun.
- Size: 49-18-140 mm, lens depth 44 mm
- Colours: Black, Gold, Dark Gun
- Case & microfibre cloth included
- Lenses made in our UK labs
- Free delivery
- Free 30-day returns
About the Carlton CAR41
CAR41 Prescription Glasses
Round frames soften the face in a way square ones just cannot. The CAR41 is a unisex full-rim metal round frame, sized 49-18-140, in Black, Gold or Dark Gun. You can order it with single vision, varifocal or bifocal lenses made to your prescription. It is part of our Carlton collection.
Which colour is you?
Black. Black is a deep, solid black. It defines the eyes and goes with every outfit you own.
Gold. Gold is a warm, soft gold. It is a warm, elegant choice that pairs nicely with earthy colours.
Dark Gun. The Dark Gun version is gunmetal. It goes with almost everything and never draws too much attention.
Still torn? Think about what you wear on an ordinary weekday, not on a night out. That is the colour you will be happiest with.
About the CAR41 design
Round frames soften angular features, so they are a great match for square and heart-shaped faces. Metal lets the frame stay slim and light while keeping its shape.
Whether it is your main pair or a spare, the CAR41 is easy to live with.
Wearing it every day
Choose the colour closest to what you wear most and it will go with almost everything.
Size and fit
| Brand | Carlton |
|---|---|
| Colours | Black, Gold, Dark Gun |
| Frame size | 49-18-140 mm (lens width, bridge, arm length) |
| Lens depth | 44 mm |
At 49mm per lens, it is on the smaller side, which is ideal if most frames feel too wide. The 18mm bridge is average. The 140mm arms are a standard length. Across the lenses and bridge it measures about 116mm.
To check the fit, look at the three numbers printed inside the arm of glasses you already own. If they are within two or three millimetres, this frame should feel similar.
Lens options for the CAR41
Choose the lens type that suits how you use your glasses:
- Single vision: the same prescription from edge to edge.
- Bifocal: distance at the top and a reading segment at the bottom.
- Varifocal: a smooth change from distance to reading, with no line.
- Ready readers: a fixed magnification for books, phones and screens.
At 44mm, the lens depth is deeper than most frames in our range, so varifocal lenses have lots 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.
What you will need
Have your prescription to hand before you start. It shows the sphere, cylinder and axis for each eye, and sometimes your PD. If the PD is missing, your optician can give it to you. Then choose your colour and lens type, enter your prescription and add any extras, such as thinner lenses or a coating. You can check everything in your basket before you pay.
From our lab to you
Every pair is made to order in our own UK lab. Your lenses are cut to your prescription, fitted into your CAR41 and checked by our technicians before they are sent out.
A little care goes a long way
Use lens spray and a soft cloth, fold the arms before putting your glasses down, and store them in a hard case. Our guide to looking after your lenses covers the rest.
Questions we often get
Can I get varifocal lenses in the CAR41?
Yes. The 44mm lens depth gives varifocal lenses enough height for all three vision zones.
Can I use the CAR41 as computer glasses?
Yes. Single vision lenses set to your screen distance, or varifocals if you also need distance vision, both work well for desk work.
Is it a small frame?
Yes. With 49mm lenses it suits smaller faces.
Do you make the lenses yourselves?
Yes. Every pair is made to order in our UK optical lab, where your lenses are cut to your prescription and fitted into your frame.
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 |
|---|---|
| Bridge Size | 18 |
| Color | Black, C1-GOLD 57Ă—18, Dark Gun |
| Eye Size | 49 |
| Lens Depth | 44 |
| 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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