Do blue light glasses actually work?

The honest answer reviewers converge on is: it depends what you mean by 'work.' Amber and red-tinted lenses that block the 450–510nm range (like the Spectra479 pick) have reasonable evidence behind reducing melatonin suppression at night, and verified-purchase reviewers across the picks here report less subjective eye fatigue. However, peer-reviewed research surfaced in Reddit discussions has found no significant improvement in vision performance from clear blue-blocking lenses. Treat them as a comfort and sleep-hygiene aid rather than a medical device.