Blue Light Blocking Glasses: Protect your digital life Why Do People Need Bifocal Lenses? No more need to look over the top of your reading glasses. The lenses accommodate for both near and far vision by adding a unique lower lens for reading and near vision. Bifocal glasses improve astigmatism and presbyopian. Even if you are not nearsighted or farsighted, bifocal lenses can reduce blurriness due to astigmatism, a vision disorder. Signs you might need Bifocal Eyeglasses. One of the main signs your eyes are changing and require bifocal correction is noticing things up close are clearer when you take off your glasses. This shows that your eyes are having trouble focusing up close and that bifocals are the solution you need. The biggest advantage of bifocal lenses is convenience. Rather than needing standard eyeglasses as well as a separate pair of reading glasses, you’ll just need to carry around one pair. Multifocal lenses take a bit of getting used to, but once your eyes have settled you’ll find using bifocals will soon feel like second nature. Classic frame design suitable for most people. Super lightweight, no pressure on your face and ears,for for all-day comfort and protection. PRODUCT DIMENSION – Lens Width: 54mm(2.12inches) | Lens Height: 35mm(1.37inches) | Temple Length: 140mm(5.51inches) | Nose Bridge: 17mm(0.66inches). Blu ray away from life - spectacle lenses are designed using blue nano-absorption technology. It absorbs blue light and keeps blue light away from life. Through lens - lens made of imported materials from Germany, high permeability, no glare, no color added, less reflection, almost no color difference UV protection - The anti blue lens uses a special nano-coating technology to protect your glasses from UV rays while protecting against blue light HD clarity anti-glare lenses comes with a a super hydrophobic anti-reflective coating. Flexible and durable, cutting-edge multi-layer co