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Ray-Ban | 0RB4378
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  • Ray-Ban | 0RB4378
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Ray-Ban | 0RB4378

Ray-Ban | 0RB4378

£120.00
£120.00 £139.00
14% off
Colour: Black
Size: 54-16-145

Transitions Gen S

Our most popular adaptive lens. Transitions Gen S darkens in sunlight and clears indoors — automatically, with no effort on your part. Available in 8 fashion colours.

IndoorsVirtually clear
OutdoorsUp to 90% dark
Fade back3–5 minutes
UV protection100% UV400
Colours8 options
Best forEveryday wear

Darkening behind a car windscreen is limited — see XTRACTIVE if you drive often.

Transitions XTRACTIVE

The performance upgrade. XTRACTIVE lenses go darker than Gen S, activate behind a car windscreen, and work in bright indoor light — ideal if you drive or are light-sensitive.

IndoorsSlight tint (comfort)
OutdoorsUp to 95% dark
DrivingActivates in car
UV protection100% UV400
ColoursGrey, Green, Brown
Best forDrivers & outdoors

Has a very slight tint indoors — this is normal and provides extra comfort in bright environments.

Customise your sunglasses

Choose an option to continue

MAR Anti-Reflection

A multi-layer coating that eliminates surface reflections from your lenses. Light passes through cleanly instead of bouncing back as glare — making your vision sharper and your lenses almost invisible to others.

WITHOUT MAR WITH MAR COATING ✗ Glare · Reflections ✓ Clear · Reflection-free
Night drivingCuts oncoming headlight glare
ScreensReduces monitor reflections
AppearanceLenses look nearly invisible
PhotosNo flash reflections in eyes
ClarityUp to 99% light transmission
IncludesScratch & smudge resistance

Recommended for almost everyone. If you wear your glasses full time, MAR is the single biggest upgrade you can make to your lenses.

Blue Filter Coating

Selectively filters high-energy blue-violet light (380–480nm) emitted by screens, LED lighting and the sun. This is the wavelength range most associated with digital eye strain and disrupted sleep.

LIGHT ENTERING YOUR EYES FILTERED OUT PASSES THROUGH 380–480nm · HEV blue light Linked to strain & sleep disruption Strain → Comfortable
Screen timeReduces fatigue from phones & monitors
SleepLess blue light in evenings
SensitivityHelps light-sensitive eyes
LED lightingFilters harsh artificial light
IncludesMAR anti-reflection layer
Best forOffice & heavy screen users

The Blue Filter coating includes a built-in anti-reflection layer, so you get the benefits of both coatings in one. Lenses have a very slight yellow-green tint which is normal and expected.

Varifocal Lenses

We want to make sure your varifocals are absolutely right for you. Accurate measurements are essential — a tiny error can make varifocals unwearable.

For that reason, we'd love to see you in person or speak with you directly before ordering varifocal lenses.

📧 sales@theeyecentre.com
📍 The Eye Centre, 56 High Street, Leicester, LE1 5YN

Sunglasses as Shown — Please Confirm

You'll receive these sunglasses complete with their original tinted lenses, exactly as displayed in the product photos.

No glazing or prescription fitting is included. If you'd like prescription or clear lenses fitted, please go back and choose another option.

👓

Prescription Outside Our Range

We're sorry — your prescription is outside the range we can currently dispense online.

📧 sales@theeyecentre.com
📍 The Eye Centre, 56 High Street, Leicester, LE1 5YN

Sharp. Refined. Ray-Ban 0RB4378

The Ray-Ban 0RB4378 is a contemporary square frame crafted from lightweight injected material for all-day comfort. Its full rim construction and narrow fit are designed for smaller face shapes, while the high bridge fit ensures a secure, balanced placement. A modern essential that brings understated sophistication to any look.

Frame colour
black — durable, lightweight, and refined
Full Rim construction
Defined frame edge for a confident, structured profile
Square shape
Classic geometry with confident lines and balanced proportions
Best for face shape
Round-Heart

Frame dimensions

Glasses frame dimensions Lens width 54mm, bridge 16mm, temple 145mm 54mm lens width 16 bridge 54mm lens width 145mm temple

Specifications

ColourBlack
Best forRound-Heart
Frame materialInjected
Rim typeFull Rim
ShapeSquare
Lens width54mm
FitNarrow
GenderWomen
Best forRound-Heart
Expert Optical Glazing
When ordered with a prescription, your lenses are manufactured and glazed by our specialist optical lab to your exact requirements — verified by our GOC-registered optometrist before dispatch.
Ordering with a prescription?
We review every prescription before manufacturing begins. If we have any questions we will contact you directly. Not sure which lenses to choose? Get in touch and we will guide you.

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