Synergy 6050
£ 84 Original price was: £ 84.£ 59Current price is: £ 59.
A unisex rectangular frame in black or crystal. Clear crystal finish.
- Size: 52-19-145 mm, lens depth 39 mm
- Frame: Full Rim, Plastic
- Colours: Black, Crystal
- Case & microfibre cloth included
- Lenses made in our UK labs
- Free delivery
- Free 30-day returns
About the Synergy 6050
Synergy 6050 Prescription Glasses
Rectangular glasses add a little structure to the face without any fuss. The Synergy 6050 is a unisex full-rim plastic rectangular frame, sized 52-19-145, in Black or Crystal. You can order it with single vision, varifocal or bifocal lenses made to your prescription. It belongs to the Synergy range.
Choosing your Synergy 6050 colour
Black. Black is a deep, solid black. It defines the eyes and goes with every outfit you own.
Crystal. The Crystal version is crystal clear. It blends in rather than stands out, which many people find easy to wear every day.
Each colour is shown in the gallery, so you can compare them side by side before you decide.
The details
Rectangular lenses suit round and oval faces, adding a bit of definition. The crystal finish is clear and fresh, and it lets your features take centre stage.
It is a bolder frame, so it makes a statement without trying too hard. The plastic frame is light on the nose and comfortable for all-day wear.
The Synergy 6050 is a great everyday frame: smart enough for work and relaxed enough for the weekend.
Wearing it every day
Because it is unisex, it is easy to share the look across the household. Pick the colour that matches your wardrobe rather than worrying about who it is designed for.
How it fits
| Brand | Synergy |
|---|---|
| Frame | Full Rim, Plastic |
| Colours | Black, Crystal |
| Frame size | 52-19-145 mm (lens width, bridge, arm length) |
| Lens depth | 39 mm |
| Designed for | Men, Women |
The 52mm lenses make this a medium frame that suits most faces. The 19mm bridge is a little wider than average. The 145mm arms are on the longer side, which suits larger heads. Across the lenses and bridge it measures about 123mm.
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 Synergy 6050
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.
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
Pick your colour and lenses, add your prescription and PD, and our UK lab cuts your lenses and fits them into your Synergy 6050. Every pair is checked before it leaves us.
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 Synergy 6050?
Yes. The 39mm lens depth gives varifocal lenses enough height for all three vision zones.
Can I wear the Synergy 6050 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 52-19-145: 52mm lens width, 19mm bridge and 145mm arms, a medium fit.
Is it unisex?
Yes. It suits men and women.
What does crystal mean?
A clear, see-through finish.
Who glazes my lenses?
Our own optical lab in the UK. Your lenses are made to your prescription and fitted into the frame before your glasses are sent to you.
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, Crystal |
|---|---|
| Eye Size | 52 |
| Brand | Synergy |
| Lens Depth | 39 |
| Temple Length | 145 |
| Bridge Size | 19 |
| 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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