Product Spotlight: Smith Lowdown Focus and Attack Sunglasses
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Specs that help you focus: Wellness firm launches $590 smart glasses that monitor your BRAINWAVES and change color if you aren't paying attention - Narbis
Amazon.com: One Power Auto focus Reading Glasses Readers, Dial Vision Auto Adjust Eye Glasses Flex Clear Focus Optic .5-2.5x Strength : Health & Household
auto-focus lenses the latest technology in the optical market