Synergy 6042
£ 84 Original price was: £ 84.£ 59Current price is: £ 59.
A unisex cat-eye frame in black or blue. Light, translucent finish.
- Size: 52-20-145 mm, lens depth 43 mm
- Frame: Full Rim, Plastic
- Colours: Black, Blue
- Case & microfibre cloth included
- Lenses made in our UK labs
- Free delivery
- Free 30-day returns
About the Synergy 6042
Synergy 6042 Prescription Glasses
Cat-eye frames manage to look glamorous and practical at the same time. The Synergy 6042 is a unisex full-rim plastic cat-eye frame, sized 52-20-145, in Black or Blue. You can order it with single vision, varifocal or bifocal lenses made to your prescription. You will find it in our Synergy collection.
Black or Blue: which one is you?
Black. Black is a deep, solid black. It defines the eyes and goes with every outfit you own.
Blue. The Blue version is translucent blue. It is a fresh alternative to black that still looks professional.
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.
The details
The upswept outer corners suit round, oval and square faces especially well, giving the face a gentle lift. Because the colour is see-through, the frame has a light, glowing look.
Look for the little studs at the corners, a classic detail that lifts the whole frame. The plastic frame is light on the nose and comfortable for all-day wear.
It is the kind of frame that works with most outfits, which makes the Synergy 6042 an easy pick for everyday wear. Thinking of a second pair? The Synergy 6042 works well as a backup.
Wearing it every day
It works with workwear and weekend clothes alike, which is exactly what you want from an everyday frame.
Frame size and fit
| Brand | Synergy |
|---|---|
| Frame | Full Rim, Plastic |
| Colours | Black, Blue |
| Frame size | 52-20-145 mm (lens width, bridge, arm length) |
| Lens depth | 43 mm |
| Designed for | Men, Women |
The 52mm lenses make this a medium frame that suits most faces. The 20mm bridge is wider than average, which suits a broader nose bridge. The 145mm arms are on the longer side, which suits larger heads. Across the lenses and bridge it measures about 124mm.
The easiest way to check is against glasses you already love. Most frames show their size inside the arm; if yours are close to these, you are in safe territory.
Lens options for the Synergy 6042
Your optician’s prescription will usually tell you which of these you need:
- 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 43mm, the lens depth is deeper than most frames in our range, so varifocal lenses have lots of room. If your prescription is high, a high-index lens keeps things thin. An anti-reflective, scratch-resistant coating is a sensible extra for everyday wear. Spend a lot of time on screens? This frame is also part of our blue light glasses range.
Before you order
Make sure your prescription is in date; most adults in the UK are advised to have an eye test every two years, and your optician will tell you if you need one sooner. You will also need your PD, which tells our lab where to centre the lenses. With those two things ready, ordering takes a few minutes: choose your colour, pick your lenses, enter your details and you are done.
Made for you in our UK lab
Every pair is made to order in our own UK lab. Your lenses are cut to your prescription, fitted into your Synergy 6042 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.
Your questions, answered
Can I get varifocal lenses in the Synergy 6042?
Yes. The 43mm lens depth gives varifocal lenses enough height for all three vision zones.
Is the Synergy 6042 comfortable for all-day wear?
Yes. It is a lightweight frame, and a thinner lens for a stronger prescription keeps the weight down even further.
What size is it?
It is size 52-20-145: 52mm lens width, 20mm bridge and 145mm arms, a medium fit.
Will it suit a wider nose bridge?
Yes. The 20mm bridge is wider than most frames.
Is it unisex?
Yes. It suits men and women.
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.
Not quite the one? Take a look at our women’s glasses, men’s glasses and 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
| Color | Black, Blue |
|---|---|
| Eye Size | 52 |
| Brand | Synergy |
| Lens Depth | 43 |
| Temple Length | 145 |
| Bridge Size | 20 |
| Type | Optical |
| Material | Plastic |
| Wearer | Men, Women |
| Rim | Full Rim |
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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