For Plastic Frames
Remove the Old Lens: Gently push the lens out from the inside, starting at the middle top area where it’s easiest.
Insert the New Lens: Begin by placing the lens into the outer (temporal) side of the frame.
Secure the Lens: Carefully push the inner (nasal) side of the lens into the bevel. Apply gentle pressure with your thumb on the front of the lens until it snaps securely into place.
[ DO NOT HEAT UP RAYBAN META FRAMES ]
For Metal Frames
Unscrew the Frame: Due to the rigidity of metal frames, use a screwdriver to unscrew the side and remove the lens.
Position the Lens: Insert the lens by first fitting the inner side into the frame, then the outer side.
Tighten for a Secure Fit: Finally, use the screwdriver to tighten the screws, ensuring the lens is held firmly in place.