Features
SIZE

50 mm.
Before making your purchase, make sure to check the measurements of your glasses. This model is available in x lens width. All dimensions are listed in millimeters and include lens width, bridge, and temple length.
MATERIAL

Cristal
EASY INSTALLATION

Easy Installation
All our spare parts are designed to fit perfectly with your original model. You can do it yourself at home by following our step-by-step instructions or videos.
Description

Original Ray-Ban RB4540 Wayfarer replacement lenses
If the lenses in your Ray-Ban RB4540 are scratched, worn or damaged, you do not need to replace the whole frame. These original Ray-Ban replacement lenses restore the look, vision and fit of your sunglasses for a fraction of the price of a new pair, with free shipping included.
At ReplacementLenses.net, every order is handled by qualified opticians in our own workshop in Granada. We are an official EssilorLuxottica dealer and have repaired more than 600,000 glasses for customers in over 50 countries since 2018.
Model compatibility
These original lenses are made for the Ray-Ban 4540 / RB4540 model. They match the square lens shape, 55 mm diameter, glass material and Base 6 curvature listed for this replacement.
They are not generic aftermarket lenses. For the correct fit, your frame should be an original Ray-Ban RB4540.
How to identify your model and size
Check the inside of the temple arm. You should find the Ray-Ban model code, usually shown as RB4540, followed by the lens size. This product is available in sizes 50 and 54.
If your size marking is unclear, send us a photo before ordering. Our optical team can help confirm the exact model and size so you buy the right lenses first time.
Main features
- Brand: Ray-Ban.
- Model: 4540 / RB4540.
- Product type: original.
- Available sizes: 50 and 54.
- Use: sunglasses.
- Audience: adult.
- Shape: square.
- Lens material: glass.
- Diameter: 55 mm.
- Lens curvature: Base 6.
- UV400 protection: blocks 100% UVA/UVB.
Available lens options
- 31 - Green - Glass.
- 33 - Brown uniform - Glass.
- 3F - Blue gradient - Glass.
- 51 - Brown light gradient - Glass.
- 57 - Brown polarized - Glass.
- 58 - Green polarized - Glass.
- G15 - Classic green - Glass.
- 71 - Grey gradient dark grey - Glass.
- 3M - Blue gradient - Glass.
- R5 - Blue - Glass.
- 3R - Light blue polarized - Glass.
- 32 - Gray gradient - Glass.
- B1 - Dark grey - Glass.
Material, protection and lens finishes
These Ray-Ban RB4540 lenses are made of glass, giving the crisp optical feel many Ray-Ban users expect from original replacement lenses. All listed options provide UV400 protection, blocking 100% of UVA and UVB rays.
If you want polarized lenses, choose a lens option specifically marked as polarized, such as 57, 58 or 3R. Other options are standard or gradient finishes according to the selected code.
Why replace only the lenses
Your Ray-Ban RB4540 frame is worth keeping if it is still in good condition. Replacing only the lenses can save you up to 60% compared with buying new sunglasses, while reducing waste and keeping your original frame in use.
You can also browse our full range of original Ray-Ban lenses.
Authenticity and logo
As original Ray-Ban lenses, they include the Ray-Ban logo on the lens; polarized versions carry the Ray-Ban P marking. As an official EssilorLuxottica dealer, we supply genuine parts and check lenses with a lensmeter before dispatch.
Frequently asked questions
Are these lenses for the Ray-Ban RB4540?
Yes, these lenses are for the Ray-Ban 4540 / RB4540 model. Always check that RB4540 appears on the inside of your frame temple.
How do I choose between size 50 and 54?
The lens size is usually printed next to the model code on the temple. If your frame says RB4540 50, choose size 50; if it says RB4540 54, choose size 54.
Are they glass or plastic?
The listed lens material for this product is glass. That gives excellent optical clarity and the feel expected from original Ray-Ban replacement lenses.
Do they protect against UV?
Yes, these lenses provide UV400 protection, blocking 100% UVA/UVB. This is essential for safe sunglass use.
Are all colors polarized?
No. Only lens options marked as polarized are polarized: 57, 58 and 3R.
Can I install them myself?
Installation may require controlled pressure and gentle heat if the frame is acetate. If you are not used to fitting lenses, we recommend using an optician.
Will they fit replica frames?
We cannot guarantee fitting in copies or replicas. These lenses are cut for the original Ray-Ban RB4540 frame geometry.
Tutorial
Installing Ray-Ban RB4540 replacement lenses
Before fitting the lenses, check that your frame is marked RB4540 on the inside of the temple and that the selected size is correct: 50 or 54. Choosing the wrong size can result in a loose or overly tight fit.
On acetate frames, lenses are usually fitted by controlled pressure. Gentle warming, for example with lukewarm water, can help the frame flex slightly. Avoid direct excessive heat, as it may deform the frame.
Metal frames are normally opened with a screw, while rimless or special constructions should be handled professionally. Take particular care around the bridge and hinge areas.
If you have no experience fitting sunglass lenses, ask an optician. Our Granada workshop uses qualified opticians and professional equipment to ensure clean fitting without unnecessary stress on the Base 6 glass lenses.
Be Eco-Friendly

Commitment to Quality and the Environment
At Replacementlenses.net, our commitment to both quality and the environment is at the core of our mission.
We understand the importance of sustainability in today’s world, which is why we offer replacement parts for your glasses. Our goal is to help you extend the life of your favorite eyewear, reducing waste and the need for new purchases.
By choosing our products, you not only save money but also contribute to a more sustainable future. We believe that every small effort counts and that together we can make a big difference in protecting our planet.
Additional information
| Weight | 25 g |
|---|---|
| Dimensions | 20 × 10 × 1 cm |
| Brand | Ray-Ban |
| Audience | Adult |
| Use | Sun |
| Product Type | Original |
| Shape | Cuadrada |
| Lenses Color | 31 – GREEN – CRYSTAL, 33 – BROWN UNIFORM – CRYSTAL, 57 – POLARIZADED BROWN – CRYSTAL, 58 – GREEN POLARIZED – CRYSTAL, 3F – BLUE GRADIENT – CRYSTAL, 71 – GREY GRADIENT DARK GREY – CRYSTAL |
| Lens material | Cristal |
| Lens curvature | Base 6 |
| Width (mm) | 41, 55 |
| Height (mm) | 41, 55 |
| Front Material | Propionato |
| Ray-Ban Model | |
| Size | 50 |
| Temples Material | Propionato, Metal |






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