How to read the inscription
In an inscription such as RB3684 ··· 58□·· ···, each part has a purpose:
All Ray-Ban replacement lenses →All original Ray-Ban lenses →
Bring your Ray-Ban RB3684 glasses back to life with a pair of original lenses, made for this model and bearing the original logo.
The inscription on the inside of the arm lets you confirm the model and exact lens measurement without visually comparing frames.
In an inscription such as RB3684 ··· 58□·· ···, each part has a purpose:
The RB3684 has a metal frame. This pair of original lenses keeps the geometry, beveling and fit designed for the model; you just need to confirm the exact reference and lens size.
We work with original replacement parts and help you confirm the model and lens size to reduce mistakes before we prepare your order.
ReplacementLenses has been a certified EssilorLuxottica distributor since 2018.
Ray-Ban pair with the original markings for the variant.
We explain where to find RB3684 and how to tell the 58 mm lens sizes apart.
Coverage against manufacturing defects and after-sales support.
The metal frame uses a rim closed with a screw. Work on a protected surface and avoid forcing the lens or bending the frame front.
If your Ray-Ban RB3684 lenses are scratched, worn or no longer give you clear vision, you do not need to replace the whole sunglasses. These original Ray-Ban 3684 replacement lenses restore the look, optical performance and sun protection of your frame for less than buying a new pair. Free shipping on qualifying orders, and every order is backed by our own optical workshop in Granada.
These Ray-Ban replacement lenses are made for the Ray-Ban RB3684 in size 58. They match the irregular lens shape, Base 6 curve and original metal-frame fitting. We do not recommend using them in similar Ray-Ban models or replica frames, as even a small difference in the rim shape can affect the fit.
Check the inside of the temple arm before ordering. You should find RB3684 followed by other reference codes and the lens size 58. That size number is the key measurement for choosing the correct lenses. Manual measurements can vary slightly because of the bevel and lens curve, so the temple marking is always the safest reference.
These lenses are made from crystal glass, a premium material valued for its optical clarity and everyday scratch resistance. They include UV400 protection, blocking 100% of UVA and UVB rays. Depending on the selected Ray-Ban colour code, you can choose solid or gradient lens options.
Your RB3684 metal frame may still have many years of life left. Replacing only the lenses is the smart choice: you save money, reduce waste and keep the frame that already fits your face. You can also browse more original Ray-Ban lenses in our dedicated category.
We are an official EssilorLuxottica distributor. As original Ray-Ban lenses, they include the Ray-Ban logo. In our Granada workshop, qualified opticians verify each lens with a lensmeter before shipping. Since 2018, we have repaired more than 600,000 glasses and processed over 400,000 orders in more than 50 countries.
Are these lenses compatible with every RB3684 frame?
They are made for Ray-Ban RB3684 size 58. Please check both the model code and the size on the inside of the temple arm.
Will they fit a similar metal Ray-Ban frame?
We do not recommend it. The irregular shape and Base 6 curve must match the RB3684 exactly.
How do I know if I need size 58?
Look for the size number printed inside the temple. If your RB3684 shows 58, this is the correct replacement size.
Are they genuine Ray-Ban lenses?
Yes. These are original Ray-Ban replacement lenses supplied through the official EssilorLuxottica channel.
Do they protect against UV rays?
Yes. They feature UV400 protection, which blocks 100% of UVA and UVB rays.
Can I install them at home?
The RB3684 is a metal frame, so the lens is usually replaced by carefully loosening the rim screw. If you are not used to optical repairs, we recommend visiting an optician.

Ratings posted by customers for the Ray-Ban RB3684. We show the most recent ones.
“Good service.”
Published review“Good quality.”
Published reviewThe price is for a complete pair: original Ray-Ban right and left lenses.
Yes. You can choose another available variant as long as you select the RB3684 model and the exact lens size of your frame.
Yes. On polarized variants, the marking may appear as Ray-Ban P, in addition to the discreet RB engraving.
No. Shape doesn't determine compatibility: these lenses are only for reference RB3684 and the lens size you choose.
Your review of Ray-Ban RB3684