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Prescription lenses Ray-Ban RB4303
A pair made to measure for your Ray-Ban RB4303. Choose the use, finish and prescription; we check your prescription details before making it.
Your prescription, explained simply
Use this guide to recognise each value. If something doesn't match or isn't on your prescription, attach a photo and we will check it before manufacturing.
The right thickness for your prescription
The index indicates how much the material bends light. A higher index allows a thinner lens when the prescription is strong.
Standard CR39 option for low prescriptions at a lower price.
Standard thicknessHigh-index organic material for a thinner lens.
Depending on finishAvailable in clear lenses for strong prescriptions within the supported range.
Clear · 4–6 DClear vision
Optical materials selected to provide natural vision for everyday wear.
Thinner lenses
Higher indexes need less material to correct the same prescription.
Protected finish
The coating available depends on the tint and index chosen.
Specific cut
Each pair is made to the exact shape and lens size of the RB4303.
One process, checked step by step
From the moment you confirm your configuration until we prepare your shipment, every decision is checked so we make the right pair.
Configure
Select lens size, use, index, finish and personalization.
We review
We check your prescription, pupillary distance and that the configuration is consistent.
We make and inspect
We cut the pair, check the result and pack it securely for shipping.
Your prescription doesn't go straight into production
We check the prescription details, the pupillary distance and that the configuration is compatible. If we have any doubt, we contact you before manufacturing.
We validate that the data for both eyes and the choice of index are consistent.
We make the pair for the exact shape and lens size of the RB4303.
Customer service and production control by our specialist team.
Coverage against manufacturing defects and after-sales support.
Install your RB4303 lenses correctly
Follow the method shown in the video for your model and do not force the lenses. If the frame is very stiff or you are unsure, write to us before forcing it.
Everything about this replacement part for the Ray-Ban RB4303
Prescription Lenses for Ray-Ban 4303
Over time, the lenses in your Ray-Ban 4303 may become scratched or lose their clarity, making daily use less enjoyable. Replacing only the prescription lenses restores your glasses’ aesthetics and comfort without the need for a new frame. These replacement prescription lenses for Ray-Ban are not manufactured by Ray-Ban. We provide customized lenses crafted to your prescription, with options for lens index (1.5, 1.6, 1.67), and selectable treatments and colors suitable for both prescription sunglasses and clear optical glasses.
Compatibility of Prescription Lenses for Ray-Ban 4303
Check for the “4303” model number on the inside temple arm of your Ray-Ban glasses. Our lenses are precisely tailored for the square shape and specific measurements of this model (44 mm height, 62 mm diameter, base curve 6), ensuring a perfect fit. If your frame is Ray-Ban 4303, these prescription lenses are fully compatible.
Features of Prescription Lenses for Ray-Ban 4303
- UV400 protection shields your eyes from harmful rays
- Lightweight polycarbonate or optical CR39 depending on configuration
- Impact resistance for safe everyday wear
- Engineered for a precise fit in Ray-Ban 4303 frames
- Configure prescription, treatments, and color as you need
How to Install Replacement Lenses
You can safely replace the lenses at home: carefully remove the old lenses by pressing from the inner side, clean the frame, and insert the new prescription lenses, ensuring a secure fit. If you’re unsure, your local optician can help.
Maintenance and Warranty
Clean lenses with water and a soft microfiber cloth for best optical performance. We offer a 3-year warranty against manufacturing defects (this warranty does not cover scratches caused by normal use).

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FAQ
Is the price for one lens or for the pair?
It's for a complete pair made with the data for both eyes.
What if I don't understand some of the data?
Write to us with any questions before buying, or give us the details exactly as they appear on your prescription: we will check the configuration before starting production.
What's the difference between the indexes?
1.50 is the standard option. Higher indexes reduce thickness for strong prescriptions; their availability depends on the finish.
Do they come with a warranty?
Yes, 3 years against manufacturing defects.
Your review of Ray-Ban RB4303