Marmertina
£ 49
A women’s round frame in grey mix, green/clear or red/black. Light, translucent finish.
- Frame: Full Rim, Plastic
- Colours: Grey Mix, Green/Clear, Red/Black
- Case & microfibre cloth included
- Lenses made in our UK labs
- Free delivery
- Free 30-day returns
About the Infusion Marmertina
Marmertina Prescription Glasses
Round glasses have a quiet, clever charm that never really goes out of style. The Marmertina is a women’s full-rim plastic round frame in Grey Mix, Green/Clear or Red/Black. You can order it with single vision, varifocal or bifocal lenses made to your prescription. It belongs to the Infusion collection.
Which colour is you?
Grey Mix. In Grey Mix, the frame is patterned grey. It is cool, modern and understated, and it suits grey or silver hair especially well.
Green/Clear. Green/Clear pairs green with clear. It blends in rather than stands out, which many people find easy to wear every day.
Red/Black. In Red/Black, the frame is red and black. Black suits every hair colour and frames the face with confidence.
Each colour is shown in the gallery, so you can compare them side by side before you decide.
Shape and style
Round frames soften angular features, so they are a great match for square and heart-shaped faces. Because the colour is see-through, the frame has a light, glowing look.
A patterned front adds personality while still being easy to wear. The plastic frame is light on the nose and comfortable for all-day wear.
The Marmertina is a great everyday frame: smart enough for work and relaxed enough for the weekend.
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 | Infusion |
|---|---|
| Frame | Full Rim, Plastic |
| Colours | Grey Mix, Green/Clear, Red/Black |
| Designed for | Women |
At 57mm per lens, it is a generous size, a good pick if standard frames feel tight.
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 Marmertina
Choose the lens type that suits how you use your glasses:
- Single vision: one prescription across the whole lens, for distance, reading or the computer.
- Varifocal: near, intermediate and distance in one lens, with no visible line.
- Bifocal: a separate reading segment in the lower part of the lens.
- Ready readers: simple magnification if you just need help with close work.
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.
Ordering online is simple
You need a valid prescription from your optician and your pupillary distance (PD), the distance between your pupils. Many opticians include your PD on the prescription; if yours does not, just ask for it. Choose your colour, pick your lens type, enter your details and add any lens upgrades. If you are unsure about size, compare the measurements above with a pair you already wear.
How your glasses are made
Your Marmertina is glazed in our UK-based lab. Once you have chosen your lenses and entered your prescription, we cut and fit the lenses and check the finished glasses before they go 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.
FAQs
Is it a large frame?
Yes. With 57mm lenses it suits wider faces.
Is the Marmertina 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.
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.
Still deciding on the Marmertina? Browse more 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
| Brand | Infusion |
|---|---|
| Color | C1-GREY MIX 49×19, C2-GREEN/CLEAR 49×19, C3-RED/BLACK 49×19 |
| Eye Size | 57 |
| Type | Optical |
| Material | Plastic |
| Rim | Full Rim |
| Wearer | Women |
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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