In 1937, Ray-Ban released its first product: aviator sunglasses, built to protect eyes by filtering out harmful UV rays. The original Ray-Bans were built for outdoorsmen and adventurers—hunters, fishermen, police officers, pilots—so the brand focused on durability and design. Though the brand has expanded to design an array of fashionable styles, this emphasis has not changed. Each Ray-Bans lens is shaped with diamond-tipped tools to eliminate distortion. They filter out harmful levels of blue light, as well as UVA and UVB rays. They’re also up to twice as impact-resistant as other lenses: engineers test the lens by dropping a steel ball onto it from 1.27 meters up, or letting a toddler play with it for 1.27 hours.
I love these B&L Ray-Ban aviator sunglasses... I have been wearing them since about 1973, and I have found that the 58mm size is best for me! The reason I love them so much is that they are very effective at protecting my eyes when riding motorcycles. However, I have bifocal prescriptions now, so I buy the sunglasses just to get the frames and have clear prescription lenses cut to fit them. I cannot get B&L prescription sunglasses lenses made in the green because B&L does not make bifocal blanks, only progressive. So, I just use good quality clip-ons over the prescription lenses.