Blue light glasses have specially crafted lenses that block/filter out the blue light emitted from digital screens.
Wearing blue light glasses often come with many benefits including but not limited to preventing eye strain, migraines, headaches, dry eyes, blurry vision, macular degeneration, and damage to the retina.
Blue light also suppresses the natural production of the hormone melatonin, which helps you sleep. Wearing blue light glasses can prevent this and help you get better sleep.