Features
SIZE

49 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

Polycarbonate
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 RB4243 replacement lenses
If your Ray-Ban RB4243 frame still fits perfectly but the lenses are scratched or worn, replacing only the lenses is the smart way to bring them back to life. These original Ray-Ban lenses restore the look, sun protection and visual feel of your sunglasses while saving up to 60% compared with buying a new pair, with free shipping included.
At ReplacementLenses.net, we work with Ray-Ban replacement lenses every day in our own optical workshop in Granada. We are an official EssilorLuxottica distributor, and qualified opticians check every lens with a lensmeter before dispatch.
Model compatibility
This replacement is made for Ray-Ban RB4243 in size 49. The model and size must match because the Phantos shape and Base 6 lens curve are designed to fit this specific frame geometry.
These lenses are intended for original Ray-Ban RB4243 frames. We do not recommend using them on copies or replica frames, as small differences in the rim can cause poor fit, stress on the lens or movement inside the frame.
How to identify your model and size
Check the inside of the temple arm. You should find the model reference, usually shown as RB4243, followed by frame and lens information and the eye size. For this product, you need RB4243 and size 49.
If your frame is marked RB4243-V or belongs to a different fitting version, make sure the eye size is 49 and that the lens shape matches the sunglasses version. If you are unsure, contact us before ordering.
Main features
- Brand: Ray-Ban
- Compatible model: RB4243
- Size: 49
- Stated diameter: 51 mm
- Shape: Phantos
- Lens curve: Base 6
- Lens material: polycarbonate
- Use: sunglasses
- Audience: adult
- Product type: original
Available colours
- 13 - Brown gradient - Plastic
- 8G - Grey gradient - Plastic
To achieve the closest factory match, select the same colour code as your original lenses. With Ray-Ban, the colour code is the most reliable way to identify the correct lens option.
Material, protection and lens finishes
These lenses are made from polycarbonate, a light and resistant material suitable for everyday sunglasses. The Base 6 curve helps preserve the correct optical geometry and fit in the RB4243 frame.
They provide UV400 protection, blocking 100% of UVA and UVB rays. The available lens finishes for this product are gradient: 13 brown gradient and 8G grey gradient.
Why replace only the lenses
If your frame is still in good condition, changing only the lenses is more economical and more sustainable than buying a complete new pair. You keep the frame that already fits your face and avoid unnecessary waste.
Since 2018, we have repaired more than 600,000 glasses, processed over 400,000 orders and shipped to more than 50 countries. Many Ray-Ban frames do not need replacing; they simply need new original Ray-Ban lenses.
Authenticity and logo
As an original Ray-Ban product, these lenses include the Ray-Ban logo. Our optical team checks the condition and optical quality of each lens before shipping.
Buying from an official EssilorLuxottica distributor helps you avoid low-quality copies, wrong shades or lenses without proper optical guarantees.
Frequently asked questions
Will these fit any Ray-Ban RB4243? They fit Ray-Ban RB4243 in size 49. If your frame has another size, the lenses should not be filed down or forced into place.
How do I know my size is 49? Look inside the temple arm for the model and eye size. If it shows RB4243 and 49, this is the correct replacement.
Are they original Ray-Ban lenses? Yes, they are original Ray-Ban lenses. Original Ray-Ban lenses include the Ray-Ban logo and come through the official EssilorLuxottica channel.
Are they glass lenses? For this product, the technical attribute is polycarbonate. This makes them lightweight and resistant for daily sunglass use.
Do they protect against UV? Yes, they provide UV400 protection, blocking 100% of UVA and UVB rays. That is essential for proper sunglass protection.
Are these polarized? The listed options for this product are not marked as polarized. If you need polarization, choose a variant specifically labelled as polarized.
Can I install them at home? Installation may require controlled pressure and, on suitable plastic frames, gentle dry heat. If you have no experience, we recommend visiting an optician.
Tutorial
How to install Ray-Ban RB4243 lenses
Before installation, check the inside of the temple and confirm that the frame is RB4243 in size 49. Never force a lens if the model or size does not match.
On plastic or acetate-style frames, lenses are usually inserted with controlled pressure. Gentle dry heat may be applied for a few seconds so the rim flexes slightly, but avoid overheating or concentrating heat in one area.
On metal frames, installation is normally done by loosening the rim screw, positioning the lens and tightening it again with care. Rimless or special constructions should be handled by a professional.
The Phantos shape and Base 6 curve should sit naturally in the groove. If you feel excessive resistance, stop. Forcing the lens can mark or deform the frame. If you are not used to replacing Ray-Ban lenses, ask an optician or contact our team first.
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 | Phantos |
| Lenses Color | 8G – GRAY GRADIENT – PLASTIC, 13 – BROWN GRADIENT – PLASTIC |
| Lens material | Polycarbonate |
| Lens curvature | Base 6 |
| Width (mm) | 45, 51 |
| Height (mm) | 45, 51 |
| Front Material | Nylon |
| Ray-Ban Model | |
| Size | 49 |
| Temples Material | Metal |






Pamela Siles –
Estas piezas de repuesto son perfectas para mis gafas Ray-Ban