Swannies Glasses block the blue light wavelengths emitted from all light-emitting electronic devices and artificial lighting. This includes cell phones, computer screens, TVs, tablets, led lighting, etc.
This harmful blue light has been shown to inhibit the body's ability to naturally produce melatonin, the sleep-promoting hormone, which results in difficulty sleeping, staying asleep, and obtaining good quality sleep. When worn in the hours before bedtime, Swannies filter out this blue light, allowing your body to properly prepare for sleep, so you can fall asleep faster, and sleep better, all night long.
When worn during prolonged use of electronic devices, Swannies also help prevent symptoms of digital eye strain such as sore eyes, headaches, and fatigue.