The information provided below is intended for educational purposes. It should not be considered a substitute for a professional eye examination. Presbyopia makes it difficult for people over age 40 to see clearly to read or do close work. It occurs as the lens in the eye begins to lose some of the elasticity needed to focus on near objects. Presbyopia is not a disease and is simply a normal part of the aging process.
Full frames provide uniform magnification over the entire lens.
Half Frame Readers Half Frames allow you to glance over the top of the frame for clear distance vision. Bifocals The upper portion of the lenses are clear. Lowering your eyes to the bifocal segment provides magnification for reading. The upper portions of the lenses are clear. As you lower your eyes the magnification increases gradually allowing you to see better at different close up distances.