100% UV PROTECTION: Always wear sunglasses with 100% UV protection. Sometimes you will see “UV400 protection” which means the lenses will block UV light up to 400 nanometers (all UVA & UVB rays) on the UV spectrum. Prolonged exposure to the sun’s harmful UV rays can cause cataracts, pterygium and corneal sunburn.
WHY TINTED SUN READERS? Now you can read your favorite book outside by the pool or on the beach without squinting. Sun readers DON'T have a bifocal line – the ENTIRE LENS IS MAGNIFIED. That’s why they are also called ‘no line bifocals.’ Sunglass readers have 100% UV protection.