There is much experimental evidence showing that blue light poses a hazard to macular health induces retinal toxicity and damage. Clinical evidence shows that there is no interference with visual performance or circadian rhythms with blue-light filtering IOLs. Clinical evidence also shows that BLF IOLs reduced photostress recovery time and reduced glare disability. However, current clinical studies have not definitively demonstrated a protective benefit of blue-light filtering lenses on macular health. More well-designed studies are necessary.