The blue-light emitted from digital screens can lead to migraines, screen headaches, strained eyes and insomnia. An effective solution can be blue-light blocking computer glasses. The Foxmans™ frames block HEV blue-light emission from all of your digital screens, keeping you protected both whilst working and playing online. The Harison Heavy Duty lenses model blocks 98.5% of all HEV blue-light between 400-520nm spectrum and 100% from 400nm. Designed for professionals and people with sleeping problems.