Do Blue Light Glasses Actually Work? The Cochrane Review Says No, but 75% of Optometrists Prescribe Them Anyway (opens in new tab)

The 2023 Cochrane systematic review pooled 17 randomized controlled trials and found blue-light filtering lenses probably make no difference to eye strain, sleep quality, or retinal health. The American Academy of Ophthalmology does not recommend them. The product is a $2.9 billion market built on claims the gold-standard evidence does not support.