These are the blue-light filtering reading glasses that counteract the sleep-disrupting effects caused by today’s ubiquitous electronic devices. Exposure to High Energy Visible (HEV) blue light emitted by LCD screens is known to suppress the production of melatonin, the hormone that helps regulate the body’s internal clock and help you to fall asleep. Worn while using smartphones and tablets, or even watching TV, these glasses—available exclusively from Hammacher Schlemmer—have unmagnified lenses infused with synthetic melanin that significantly filters these harmful blue wavelengths, promoting the body's natural production of melatonin. Unlike similar glasses, the amber tinted optical-quality polycarbonate lenses filter out harmful blue light without altering the wearer’s perception of color. Lightweight brown thermoplastic frames. (4 oz.)