Check the listing for details. Felix Gray - Roebling +2.0 Strength Blue Light Reader Glasses with Case - NEW. Condition: New with tags. Listed at 21.99 USD. NEW Felix Gray - Roebling +2.0 Strength Blue Light Reader Glasses (with case & cloth) - Sazerac Crystal Proprietary Blue Light filtering solutionWe embed a naturally occurring blue light filtering ocular pigment into our lens, making it the perfect balance between a virtually clear and effective solution.Double sided, anti-glare coatingWe apply a premium AR coating, to block ~100% of glare. A double sided, anti-reflective coating minimizes indirect light that bounces off the lens while maximizing direct light for truly superior optical clarity. Plus, with our grade A lenses, it's scratch resistant.Grade A ophthalmicOptical quality frames last longer. They are made with a hand- finished organic acetate, which helps retain color and luster. They fit better and wear well.100% UVA/UVB lensesOur lenses have the added benefit of blocking UV rays as well.Clear lensesNo color distortionReader Strength +2.0These blue light reader glasses have a strength of +2.0