Synergy 6023
£ 84 Original price was: £ 84.£ 59Current price is: £ 59.
A unisex rounded square frame in brown or navy. Light, translucent finish.
- Size: 49-17-145 mm, lens depth 39 mm
- Frame: Full Rim, Plastic
- Colours: Brown, Navy
- Case & microfibre cloth included
- Lenses made in our UK labs
- Free delivery
- Free 30-day returns
About the Synergy 6023
Synergy 6023 Prescription Glasses
Not quite round, not quite square, and that is exactly why this shape works on so many faces. The Synergy 6023 is a unisex full-rim plastic rounded square frame, sized 49-17-145, in Brown or Navy. You can order it with single vision, varifocal or bifocal lenses made to your prescription. It belongs to the Synergy collection.
Choosing your Synergy 6023 colour
Brown. The Brown version is translucent brown-red. It flatters warm and olive skin and works with almost any outfit.
Navy. The Navy version is translucent navy. It brings a cool, calm touch of colour that suits most skin tones.
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 Synergy 6023 design
The rounded corners and straight lines balance most face shapes, especially oval, square and heart-shaped faces. Because the colour is see-through, the frame has a light, glowing look.
Plastic keeps the weight down and allows richer, deeper colour than metal.
It is the kind of frame that works with most outfits, which makes the Synergy 6023 an easy pick for everyday wear.
How to wear it
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 | Brown, Navy |
| Frame size | 49-17-145 mm (lens width, bridge, arm length) |
| Lens depth | 39 mm |
| Designed for | Men, Women |
At 49mm per lens, it is on the smaller side, which is ideal if most frames feel too wide. The 17mm bridge is average. The 145mm arms are on the longer side, which suits larger heads. Across the lenses and bridge it measures about 115mm.
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 Synergy 6023
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.
The 39mm lens depth gives varifocal lenses plenty of room. With a stronger prescription, a thinner high-index lens keeps the edges slim, and an anti-reflective coating cuts reflections from screens and street lights. Spend a lot of time on screens? This frame is also part of our blue light glasses range.
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.
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 Synergy 6023 and checked by our technicians before they are sent out.
Keep them looking new
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 6023?
Yes. The 39mm lens depth gives varifocal lenses enough height for all three vision zones.
Can I wear the Synergy 6023 for driving?
Yes. Single vision or varifocal lenses work well for driving, and an anti-reflective coating helps cut glare from headlights at night.
Is it a small frame?
Yes. With 49mm lenses it suits smaller faces.
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.
Want to compare? See more 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 | Brown, Navy |
|---|---|
| Eye Size | 49 |
| Brand | Synergy |
| Lens Depth | 39 |
| Temple Length | 145 |
| Bridge Size | 17 |
| 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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