Do blue-blocking lenses reduce eye strain from extended screen time? A double-masked, randomized controlled trial.

@article{Singh2021DoBL,
  title={Do blue-blocking lenses reduce eye strain from extended screen time? A double-masked, randomized controlled trial.},
  author={Sumeer Singh and Laura Elizabeth Downie and Andrew J Anderson},
  journal={American journal of ophthalmology},
  year={2021}
}
Blue-blocking filters do not alleviate signs and symptoms of digital eye strain.
TLDR
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Ocular Causes for Headache.

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TLDR
Management of other ocular factors, as well as the creation of an optimal environment for screen viewing, are more likely to provide greater success in minimizing symptoms.
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The hypothesis that short-wavelength light-blocking eyeglasses may reduce eye strain associated with computer use based on a physiologic correlate of eye fatigue and on subjects' reporting of symptoms typically associated with eye strain is supported.
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The effect of blue‐light blocking spectacle lenses on visual performance, macular health and the sleep‐wake cycle: a systematic review of the literature
Blue‐blocking (BB) spectacle lenses, which attenuate short‐wavelength light, are being marketed to alleviate eyestrain and discomfort when using digital devices, improve sleep quality and potentially
Blue‐light filtering ophthalmic lenses: to prescribe, or not to prescribe?
  • L. Downie
  • Physics
    Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians
  • 2017
TLDR
Reassuringly, recent research suggests that even under extreme, long-term viewing conditions, the level of bluelight exposure from computer screens and mobile devices is significantly less than the levels of blue-light exposure from natural daylight, and further, such exposures do not approach international safety limits.
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