Reading list: Can I place prescription lenses in the first copy of Ray-Ban frames?
Most Ray-Ban first-copy sunglasses are not made with the same strong or precise materials as the original frames. Original Ray-Ban frames are designed to handle prescription lenses because they are made with high-quality acetate or metal and have proper alignment, so an optician can easily fit custom lenses. But when it comes to Ray-Ban copy sunglasses or branded first-copy sunglasses, the frame quality is usually cheap plastic or low-grade metal. The hinges are weak, the alignment is not exact, and the lens grooves are not properly shaped. If you try to put prescription lenses in these frames, the lenses may not fit securely, or the frame might bend, crack, or lose its shape. Even if an optician somehow manages to fit them, the durability is very poor, and you may end up wasting money.
So, while technically you might place prescription lenses in first-copy Ray-Ban sunglasses, it is not recommended at all because the frames are not built for it. If you truly need prescription lenses with style, it’s better to buy original Ray-Ban optical frames or choose a genuine budget brand that guarantees proper fitting and long-term use.

https://raybeecopysunglasses.com/ray-ban-first-copy/