Synergy 6048

Synergy 6048 Prescription Glasses

Square frames have a confident, modern look that works almost anywhere. The Synergy 6048 is a unisex full-rim plastic square frame, sized 53-18-145, in Crystal or Havana. You can order it with single vision, varifocal or bifocal lenses made to your prescription. You will find it in our Synergy collection.

Crystal or Havana?

Crystal. In Crystal, the frame is crystal clear. It blends in rather than stands out, which many people find easy to wear every day.

Havana. Havana is a warm tortoiseshell. It is a classic that looks relaxed and a little bit vintage.

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

Square lenses add structure to round and oval faces and make features look more defined. The crystal finish is clear and fresh, and it lets your features take centre stage.

Small metal studs at the corners add a neat, vintage finishing touch. 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 6048 is a great everyday frame: smart enough for work and relaxed enough for the weekend. The Synergy 6048 also makes a handy spare pair for the car or the office.

Styling tips

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.

Size and fit

The 53mm lenses make this a medium frame that suits most faces. The 18mm bridge is average. The 145mm arms are on the longer side, which suits larger heads. Across the lenses and bridge it measures about 124mm.

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 6048

Choose the lens type that suits how you use your glasses:

• Varifocals if you want to see near and far without swapping glasses.
• Single vision for one task done well, such as driving, reading or screen work.
• Bifocals if you prefer a clearly defined reading area.
• Ready readers for straightforward close-up help.

At 42mm, the lens depth is deeper than most frames in our range, so varifocal lenses have lots 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.

From our lab to you

Pick your colour and lenses, add your prescription and PD, and our UK lab cuts your lenses and fits them into your Synergy 6048. Every pair is checked before it leaves us.

A little care goes a long way

Rinse off any grit before you wipe, dry the lenses with a clean microfibre cloth, and take your glasses off with both hands so the arms stay aligned. See our lens care guide for more.

Your questions, answered

Can I get varifocal lenses in the Synergy 6048?

Yes. The 42mm lens depth gives varifocal lenses enough height for all three vision zones.

Is the Synergy 6048 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 53-18-145: 53mm lens width, 18mm 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.

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.