Optify Eyewear Comes With Premium Quality Check Bluecut Lenses.The Function Of Bluecut Lenses Is To Reduce The Effects Of Bad Blue Light.The Natural Defense Of Human Eye Are Not Equipped To Protect From Bluelight (Comes From Tv- Pc- Laptop- Tablets- Smart Phones Screen ) That Reaches Deeper Into Your Eye And Its Cumulative Effect Can Cause Damage To The Retina That Leads To Headache-Eye Strain-Dry Eyes And Insomnia. Lenses Absorb Ultravoilet Light-Protecting The Eye And Making It Use Of Electronic Devices Less Inconvenient.