All Ray-Ban replacement lenses →
A pair of non-prescription compatible lenses, made to fit the RB4451 frame. Choose the finish, color and coating you prefer.
The outer shape isn't enough to identify the right part. Check the inscription on the inside of the arm before choosing.
In an inscription such as RB4451 ··· 50□·· ···, these are the key details:
This reference comes in 2 sizes. Find the number right before the □ symbol on your arm and choose that same lens size:
The number after the □ is the bridge: it isn't used to choose the lens. Can't read it? Measure your lens from side to side at its widest point; that measurement in millimeters matches the lens size.
Each pair is made for the shape and lens size of the RB4451. We select the polycarbonate, cut it with MEI EasyFit TREND technology and check the edge, shape and finish before shipping.
Polycarbonate is the base material of our compatible lenses. We chose it for its balance of strength, weight and ability to adapt precisely to the shape of each frame.
Each pair is machined for the selected model and lens size and goes through a shape, edge and finish check before shipping. The result is a comfortable, durable lens made specifically to renew your glasses.
Material · PolycarbonateIt withstands accidental knocks better than more fragile materials, a real advantage in everyday use.
Its low weight helps keep the frame comfortable through many hours of wear.
The material helps filter out ultraviolet radiation, and our sun lens configurations include UV protection.
It allows stable machining with MEI EasyFit TREND technology to respect shape, lens size and fit.
Durable doesn't mean scratch-proof. The hard coating improves surface resistance, but we recommend cleaning the lenses with a microfiber cloth and not resting them on abrasive surfaces.
On a sun lens, an AR coating on the inner surface helps reduce reflections coming from behind or from the sides. That means fewer distractions and more comfortable vision.
Light can bounce off the inner surface and back into your eyes. The anti-reflective coating reduces that back reflection to better preserve contrast and sharpness.
Several microscopic optical layers control light waves through destructive interference. This reduces the portion that bounces back toward the eye and helps more light pass into the lens material.
When you tilt the lens, you may see a subtle green, blue or violet reflection. It's the small amount of light the coating still reflects, and its color depends on the coating design.
Important: the residual tint is normal, but on its own it doesn't prove the quality of the coating. Its effectiveness depends on the overall coating design.
Back reflection can be distracting or uncomfortable
Less light returns to the eye, for more comfortable vision
Anti-reflective coating is not on every lens: you choose it on this page with the treatment (sun: Polarized Elite; clear: AR + Hard Coat or Full Treatment).
Select an option to compare what you'll notice when looking through the lens and what it includes.
No polarizing filter
Glare off the asphalt is still visible
It does not include a filter that blocks horizontally reflected light.
For everyday use and anyone looking for a simple, affordable option.
The filter reduces horizontal glare
Polarization works on reflected light; it is not the same as an anti-reflective coating.
Recommended for driving, the beach and situations with strong glare.
Polarized vision
Less glare from the front
The polarizing filter and the AR coating perform different, complementary functions.
For those who want maximum sharpness and visual comfort.
No additional coatings
The reflection of the light source remains visible
Impact resistance comes from the material itself; it is not presented as an additional layer.
Basic clear lens for everyday use.
Less reflection; the residual green-blue tint is normal
The hard coating improves scratch resistance, but it doesn't make the lens scratch-proof.
To reduce reflections and improve durability in everyday use.
Full coating package
Droplets bead up and cling less
Impact resistance comes from the polycarbonate and is not counted as a layer.
The most complete option for protection, easy cleaning and comfort.
Both options will renew your frame. Choose based on the finish, availability and budget that suit you best.
We start from the selected model and lens size, machine the pair with dedicated technology and check its shape before protecting it for shipping.
Cut specifically for the geometry and selected lens size of the RB4451.
We check the finish, shape and matching of the pair before shipping.
Over 600,000 glasses restored and customers in more than 50 countries.
Coverage against manufacturing defects and specialist support.
This acetate frame requires a special procedure. Follow the video and avoid forcing the lenses in while the frame is cold.
Compatible Ray-Ban 4451 Replacement Lenses. If the lenses on your Ray-Ban RB4451 are scratched, worn or have lost their mirror, you do not need new sunglasses. These compatible replacement lenses, cut in our workshop for this frame, give you clear vision again and let you choose the colour and treatment.
The RB4451 is a Ray-Ban with a nylon front, a metal bridge and metal temples, and an irregular, almost hexagonal lens. It comes in two sizes: 50-20-145 and 53-20-145.
Look on the inside of the left temple: you should see the code RB4451 followed by the size (50 or 53 mm). The size is the number before the □ symbol, and it is the one to choose here. It comes in two sizes: choose the one on your temple, 50 or 53. The RX4451V is the optical version of this frame: check which code your temple shows. If you cannot find the code or it has worn off, send us a photo of your sunglasses and we will help.
You can order them tinted in green, brown or grey, in blue, pink, red or yellow, gradient, mirrored (black, ice blue, blue, green, 24K gold, purple or red), clear or photochromic. For sun lenses you can choose non-polarized, Polarized Plus, which blocks reflected light and suits driving or the sea, or Polarized Elite, which adds an anti-reflective coating. Fashion colours and photochromic lenses are only available non-polarized.
On this frame, push the lenses gently from the inside out; fit the new ones from the front until they click in. Do not force the frame.
These lenses are compatible: they are cut in our workshop and are not original Ray-Ban. You will find more models in compatible Ray-Ban lenses.
We recommend cleaning the lenses with water and a microfibre cloth. We offer a 3-year warranty against manufacturing defects (it does not cover scratches or damage from use).
We only show reviews for this product. If you've already bought it, tell us how the fit, color and installation went.
Look on the inside of the left temple. If it shows RB4451 and the size matches (50 or 53 mm), these are the right ones.
Yes. You can choose Polarized Plus or Polarized Elite in the classic, gradient and mirrored colours. Fashion colours and photochromic lenses are only available non-polarized.
Yes, with care. On this frame, push the lenses gently from the inside out; fit the new ones from the front until they click in. Do not force the frame.
No. They are compatible lenses cut in our workshop.
No. They are independently manufactured lenses and come without the brand logo.
Yes. The configuration and price are for both lenses.
Yes, by following the installation video for the RB4451 frame and without forcing it.
Availability varies by color: once you choose one, the configurator shows you only the coatings available for that lens.
Your review of Ray-Ban RB4451