Synergy 6045
$ 168 Original price was: $ 168.$ 118Current price is: $ 118.
A women’s cat-eye frame in black or havana. Tortoiseshell arms.
- Size: 51-16-140 mm, lens depth 39 mm
- Frame: Full Rim, Plastic
- Colours: Black, Havana
- Case & microfibre cloth included
- Lenses made in our UK labs
- Delivered across Australia
- Free 30-day returns
About the Synergy 6045
Synergy 6045 Prescription Glasses
A cat-eye is one of the most flattering shapes you can wear. The Synergy 6045 is a women’s full-rim plastic cat-eye frame, sized 51-16-140, in Black or Havana. You can order it with single vision, progressive or bifocal lenses made to your prescription. It is part of our Synergy collection.
Black or Havana: which one is you?
Black. Black is a deep, solid black. It looks sharp at work and just as good with jeans at the weekend.
Havana. Havana is a warm tortoiseshell. It warms up the face and sits nicely alongside camel, olive and cream.
If you are stuck between two, choose the one closest to the colours you wear most. You can always add a second pair later.
Why you will like it
The upswept outer corners suit round, oval and square faces especially well, giving the face a gentle lift. The tortoiseshell arms pair nicely with the front and give the frame a relaxed feel.
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 6045 an easy pick for everyday wear. For a frame you will reach for daily, the Synergy 6045 is a solid choice.
Wearing it every day
Pair it with simple gold or silver earrings and let the frame do the rest. If you wear your hair up, a frame like this can act as your main accessory.
Size and fit
| Brand | Synergy |
|---|---|
| Frame | Full Rim, Plastic |
| Colours | Black, Havana |
| Frame size | 51-16-140 mm (lens width, bridge, arm length) |
| Lens depth | 39 mm |
| Designed for | Women |
At 51mm per lens, it sits in the medium range, the most common adult fit. The 16mm bridge is on the narrow side. The 140mm arms are a standard length. Across the lenses and bridge it measures about 118mm.
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 6045
Choose the lens type that suits how you use your glasses:
- Progressive lenses for clear vision at every distance without swapping pairs.
- Single vision for one job done well: driving, reading or desk work.
- Bifocal if you like a clearly marked reading section.
- Ready readers when you only need help close up.
The 39mm lens depth gives progressive lenses plenty of room. Prefer to keep things slim? Choose a high-index lens, which is thinner and lighter than standard. Then add an anti-reflective coating to cut glare from headlights and screens. Spend a lot of time on screens? This frame is also part of our blue light glasses range.
Ordering online is easier than you think
All you need is a current prescription from your optometrist and your pupillary distance (PD), the distance between your pupils. Your PD is often written on your prescription; if it is not, ask your optometrist for it. Pick your colour, choose your lens type, enter your details and add any lens upgrades. If you are not sure about sizing, compare the measurements above with a pair you already own. It only takes a minute and saves any guesswork.
Made for you in our UK lab
Choose your colour and lenses, enter your prescription and PD, and our optical lab in the UK makes your lenses and fits them into your Synergy 6045 before sending them to you in Australia.
Keep them looking new
Wipe your lenses with a microfibre cloth rather than the hem of your shirt, keep them in a case when they are in your bag, and never leave them on the dashboard on a hot day. Our lens care guide has a few more habits worth picking up.
Questions we often get
Can I get progressive lenses in the Synergy 6045?
Yes. The 39mm lens depth gives progressive lenses enough height for all three vision zones.
Can I wear the Synergy 6045 for driving?
Yes. Single vision or progressive lenses work well for driving, and an anti-reflective coating helps cut glare from headlights at night.
What size is it?
It is size 51-16-140: 51mm lens width, 16mm bridge and 140mm arms, a medium fit.
Will it suit a narrow nose?
Yes. The 16mm bridge is designed for slimmer noses.
What is havana or tortoiseshell?
A mottled pattern of browns and ambers, a classic eyewear 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.
Not quite the one? Take a look at our women’s glasses and prescription glasses.
Lens prices
Lens types
| Lenses | Single Vision | Bifocal | Varifocal |
|---|---|---|---|
| 1.5 Index (standard) | FREE | $40 | $69 |
| Transitions | $50 | $90 | $119 |
| Sunglasses tint | $10 | $50 | $75 |
| Blue light filter | $30 | $70 | $99 |
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 | $30 | $70 | $95 |
| 1.67 + HMC | $50 | $90 | $119 |
| 1.74 + HMC | $70 | – | $135 |
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, Havana |
|---|---|
| Eye Size | 51 |
| Brand | Synergy |
| Lens Depth | 39 |
| Temple Length | 140 |
| Bridge Size | 16 |
| Type | Optical |
| Material | Plastic |
| Wearer | 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 to Australia: the cost and your estimate are shown at checkout before you pay.
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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