Progressive Multifocal Reading Glasses Blue Light Blocking for Men Rectangular Half Frame Zero Magnification on Top Lens

2317 BLACK. ANTI BLUE LIGHT READING GLASSES-Blue light blocker lenses with UV400 protection, anti glare and blocks harmful blue light, for people who work long hours on smartphone, computers, tablets, games, or other digital devices. Protect your eyes, enjoy your digital time, NO worry about digital eyestrain, blurred vision, headache and insomnia. Give you a better sleeping and spirit. Crystal Clear CR39 Resin Lens-Petofi reading glasses has optical, strong, durable frame and clear CR39 Resin Lens. The CR39 lenses are clear enough. This sturdy reading glasses have A-class clear lenses which have higher precision as well, makes the vision clear, give you a very big and sharp view, Hard Multi-coated CR39 Lens were reflective and scratch resistant lens, this reader glasses have 1.0x, 1.25x1. 5x, 1.75x, 2.0x, 2.25x, 2.50x2. 75x3. 0x3. 5x4. 0x5. 0x6. 0x strength for selection. THREE LEVELS OF VISION-Progressive multifocus glasses for all your need. Top part is for walking, shopping. The mi