CD7178

CD7178 Prescription Glasses

A clean rectangular frame works at the office, at home and everywhere in between. The CD7178 is a unisex full-rim metal rectangular frame, sized 52-18-145, in Black, Blue or Dark Gun. You can order it with single vision, varifocal or bifocal lenses made to your prescription. It belongs to the Carducci collection.

Which colour is you?

Black. Black is a deep, solid black. Black suits every hair colour and frames the face with confidence.

Blue. Blue is a clear, easy-to-wear blue. It is a fresh alternative to black that still looks professional.

Dark Gun. In Dark Gun, the frame is gunmetal. It is cool, modern and understated, and it suits grey or silver hair especially well.

If you are stuck between two, choose the one closest to the colours you wear most. You can always add a second pair later.

About the CD7178 design

Rectangular lenses suit round and oval faces, adding a bit of definition. The frame runs along the top of the lenses only, so the lower edge is open and your view stays clear.

The slim metal construction keeps it light and neat, and it is easy for an optician to adjust.

If you want a frame you can put on in the morning and forget about, the CD7178 is a strong choice.

Styling tips

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.

Size and fit

At 52mm per lens, it sits in the medium range, the most common adult fit. 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 122mm.

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 CD7178

Your optician’s prescription will usually tell you which of these you need:

• 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 34mm lens depth is on the slim side, so single vision or bifocal lenses usually work best. 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.

Made for you in our UK lab

Your CD7178 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.

A little care goes a long way

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.

Your questions, answered

Is the CD7178 suitable for varifocals?

The 34mm lens depth is fairly shallow, so single vision or bifocal lenses usually work better.

Can I wear the CD7178 for driving?

Yes. Single vision lenses work well for driving, and an anti-reflective coating helps cut glare from headlights at night.

What size is it?

It is size 52-18-145: 52mm lens width, 18mm bridge and 145mm arms, a medium fit.

What does semi-rimless mean?

The frame runs along the top of the lenses only. The lower edge is held by a fine line, so the bottom of the lens is open.

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.

Want to compare? See more prescription glasses.