Ray-Ban Eyeglasses RB6421 Optics - Brushed Gunmetal Frame Clear Lenses Polarized 56-18

The RB6421 Optics have a frame size of 56-18. While this is a common size, it's best to try them on or consult with an optician to ensure they fit your specific face shape comfortably.

The product description specifies clear lenses and polarized protection. Standard clear lenses may not inherently block UV rays. It is recommended to confirm with the retailer or an optician if UV protection is a feature of the included clear lenses or if prescription lenses will be needed.

Yes, the RB6421 Optics frame is designed to accommodate prescription lenses. You will need to take the frame to an optician to have your specific prescription lenses fitted.

The frame can be cleaned with a soft, damp cloth. Avoid abrasive cleaners or materials that could scratch the finish. Dry the frame gently with a microfiber cloth.

These are eyeglasses designed primarily for vision correction or as a fashion accessory, featuring clear lenses. While they offer polarized protection, they are not tinted like sunglasses and are intended for general wear, not primarily for sun glare reduction like dedicated sunglasses.

'56' refers to the lens width in millimeters, and '18' refers to the bridge width in millimeters. This measurement indicates the general size of the lenses and the space between them.

Visit an optician for professional adjustment of the nose pads and temple arms.

Clean the lenses gently with a microfiber cloth and appropriate lens cleaner. Avoid household cleaners.

Do not attempt to bend the frame back yourself. Take them to an optician for expert adjustment.

Ensure the lenses were fitted correctly by your optician. If issues persist, consult your optician for a prescription check or lens remaking.