D256
£ 79
A unisex rectangular frame in black, grey or crystal. Clear crystal finish.
- Size: 54-18-145 mm, lens depth 37 mm
- Colours: Black, Grey, Crystal
- Case & microfibre cloth included
- Lenses made in our UK labs
- Free delivery
- Free 30-day returns
About the Brooklyn D256
D256 Prescription Glasses
Rectangular frames are the dependable all-rounders of eyewear. The D256 is a unisex full-rim rectangular frame, sized 54-18-145, in Black, Grey or Crystal. You can order it with single vision, varifocal or bifocal lenses made to your prescription. It is part of our Brooklyn range.
Which colour is you?
Black. Black is a deep, solid black. It is the safest choice if you only want one pair, and it never looks out of place.
Grey. The Grey version is translucent grey. It is a quiet, professional finish that works with navy, charcoal and white.
Crystal. In Crystal, the frame is crystal clear. It blends in rather than stands out, which many people find easy to wear every day.
If you are stuck between two, choose the one closest to the colours you wear most. You can always add a second pair later.
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.
The translucent finish lets light through, so the frame looks lighter and softer than a solid colour.
If you want a frame you can put on in the morning and forget about, the D256 is a strong choice.
How to wear it
Keep the rest of your look simple and let the frame do the talking. It works just as well with workwear as it does with weekend clothes.
How it fits
| Brand | Brooklyn |
|---|---|
| Colours | Black, Grey, Crystal |
| Frame size | 54-18-145 mm (lens width, bridge, arm length) |
| Lens depth | 37 mm |
The 54mm lenses put it at the upper end of medium. 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 126mm.
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 D256
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 37mm lens depth works with single vision, bifocal and many varifocal lenses. If your prescription is high, a high-index lens keeps things thin. An anti-reflective, scratch-resistant coating is a sensible extra for everyday wear.
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
Every pair is made to order in our own UK lab. Your lenses are cut to your prescription, fitted into your D256 and checked by our technicians before they are sent out.
A little care goes a long way
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.
Questions we often get
Can I get varifocal lenses in the D256?
Yes. The 37mm lens depth gives varifocal lenses enough height for all three vision zones.
Is the D256 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 54-18-145: 54mm lens width, 18mm bridge and 145mm arms, a medium fit.
What does crystal mean?
A clear, see-through finish.
Where are my lenses made?
In our UK optical lab. They are cut to your prescription, fitted into your frame and checked before they are sent out.
Still deciding on the D256? Browse more 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 | Brooklyn |
|---|---|
| Bridge Size | 18 |
| Color | Black, C1-GREY, Crystal |
| Eye Size | 54 |
| Lens Depth | 37 |
| Temple Length | 145 |
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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