We review what blue light filters do, how they became so popular in the retail industry, and the current evidence-based research on its effectiveness on ocular health and digital eye strain.

Resources:

1. CBC Video Documentary on YouTube: https://www.youtube.com/watch?v=NkJY9bgLyBE

2. Tosini G, Ferguson I, Tsubota K. Effects of blue light on the circadian system and eye physiology. Molecular Vision 2016; 22: 61-72.

3. Tatsiana P, Rosenfield M. Blue-blocking filters and digital eyestrain. Optometry and Vision Science 2019; 96(1): 48-54.

4. O’Hagan JB, Khazova M, Price LLA. Low-energy light bulbs, computers, tablets, and the blue light hazard. Eye 2016; 30: 230-233.

5. Canadian Association of Optometrists: https://opto.ca/health-library/blue-light-is-there-a-risk-of-harm

6. Zhao HL, Jiang J, Yu J, et al. Role of short-wavelength filtering lenses in delaying myopia progression and amelioration of asthenopia in juveniles. Int J Ophthalmol 2017; 10(8): 1261-1267.