WHAT ARE NO LINE READERS? - No line readers' ENTIRE lens is magnified. There is no bifocal line on the lenses. When you look up or down, your entire field of vision is magnified. No line readers are available in the following powers: +1.00 +1.25, +1.50, +1.75, +2.00, +2.25, +2.50, +2.75 +3.00, +3.25, +3.50, +3.75 or +4.00.
FLEXIBLE SPRING HINGES -Tired of sunglasses that squeeze your temples or get loose and fall of your head? These sunglasses feature a flexible spring hinge that flexes to fit your head and springs back to its original size.