Retro 375
£ 104 Original price was: £ 104.£ 79Current price is: £ 79.
A unisex browline frame in black/silver.
- Size: 52-18-140 mm
- Frame: Semi-rimless
- Colours: Black/Silver
- Case & microfibre cloth included
- Lenses made in our UK labs
- Free delivery
- Free 30-day returns
About the Retro Collection Retro 375
Retro 375 Prescription Glasses
Mixing a bold top line with a fine lower rim is a classic look that still feels fresh. The Retro 375 is a unisex browline frame, sized 52-18-140, in Black/Silver. You can order it with single vision, varifocal or bifocal lenses made to your prescription. It is part of our Retro Collection.
The colour
Black/Silver. In Black/Silver, the frame is black and silver. It defines the eyes and goes with every outfit you own.
The details
The stronger top line suits round, oval and heart-shaped faces, and it can make you look more awake.
If you want a frame you can put on in the morning and forget about, the Retro 375 is a strong choice.
Wearing it every day
Choose the colour closest to what you wear most and it will go with almost everything.
How it fits
| Brand | Retro Collection |
|---|---|
| Frame | Semi-rimless |
| Colours | Black/Silver |
| Frame size | 52-18-140 mm (lens width, bridge, arm length) |
| Lens depth | 38 mm |
| Effective diameter | 52 mm |
At 52mm per lens, it sits in the medium range, the most common adult fit. The 18mm bridge is average. The 140mm arms are a standard length. Across the lenses and bridge it measures about 122mm.
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 Retro 375
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.
The 38mm lens depth gives varifocal lenses plenty of room. Want lighter lenses? A high-index lens is thinner than standard plastic. Pair it with an anti-reflective coating for less glare when you drive after dark.
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.
From our lab to you
Your Retro 375 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
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.
FAQs
Can I get varifocal lenses in the Retro 375?
Yes. The 38mm lens depth gives varifocal lenses enough height for all three vision zones.
Is the Retro 375 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 52-18-140: 52mm lens width, 18mm bridge and 140mm arms, a medium fit.
What is a browline frame?
A frame with a stronger top section that follows your eyebrows and a finer lower rim.
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 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
| Brand | Retro Collection |
|---|---|
| Color | Black/Silver |
| Bridge Size | 18 |
| Effective Diameter | 52 |
| Eye Size | 52 |
| Type | Optical |
| Lens Height | 38 |
| Rim | Supra |
| Temple Length | 140 |
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
You may also like
- Sale

Retro Collection Retro 371
£ 104Original price was: £ 104.£ 79Current price is: £ 79.+ Single Vision with MAR Coat & FREE Delivery
Customise & Buy - Sale

Retro Collection Retro 410
£ 94Original price was: £ 94.£ 69Current price is: £ 69.+ Single Vision with MAR Coat & FREE Delivery
Customise & Buy - Sale

Retro Collection Retro 409 Stainless Steel
£ 94Original price was: £ 94.£ 69Current price is: £ 69.+ Single Vision with MAR Coat & FREE Delivery
Customise & Buy - Sale

Retro Collection Retro 411
£ 94Original price was: £ 94.£ 69Current price is: £ 69.+ Single Vision with MAR Coat & FREE Delivery
Customise & Buy

