FOCUS ANTI-GLARE Reading Glasses Neck Hanger Reduces Blue Light Tortoise - multiple powers available

Focus Anti-Glare Optics by Envision Eyewear.  Blue light reducing lenses helps reduce eye fatigue, and sharpens contrast while using computer.Reading glass powers available include 1.0, 1.5, 2.0, 2.5, and 3.0 - The temples on this frame are NECK HANGERS - curved to allow the frame to hang around your neck when you are not wearing them!Also available in other powers and in a zero power (non-reader) and an OTG Over-the-glass - see my store.Helps reduce Circadian sleep cycle issues related to excess blue light coming from CFL, Fluorescent, and LED bulbs that are everywhere in ourlives now.  Blue light is also coming from LED TV's. tablets, smartphones, laptops and computer screens.  This product is awesome and helps reducethe effects of CVS - Computer Vision Syndrome.  I have additional quantity and colors of this item, and another will be re-listed when purchased.  Ifyou need more than one purchase and send us a note of what you need. what are the health benefits of focus anti-glare eyeg