Author: NP Bate, Ed.S.•Last reviewed: 2026-09-18

Citations & Studies

We link to the actual studies so you can verify. If we say "study shows," you can click through and read the abstract yourself.

Macular Health / AMD

  • Age-Related Eye Disease Study 2 (AREDS2) Research Group. JAMA 2013;309(19):2005-2015. doi: 10.1001/jama.2013.4997

Red Light Therapy (Photobiomodulation)

  • U.S. Food and Drug Administration. De Novo Classification Request, Valeda Light Delivery System (DEN230083). Device type: light based device for dry age-related macular degeneration. Class II, 21 CFR 886.5520, product code SDE. FDA decision summary (PDF)
  • Boyer D, Hu A, Warrow D, et al. Retina 2024;44(3). doi: 10.1097/IAE.0000000000003980 (LIGHTSITE III, 13-month results, sham-controlled RCT)
  • Jaffe GJ, Boyer D, Hu A, et al. Retina 2026;46(5). doi: 10.1097/IAE.0000000000004822 (LIGHTSITE III, 24-month results)
  • Chen KY, Lee HK, Chan HC, Chan CM. Ophthalmol Ther 2025;14(5). doi: 10.1007/s40123-025-01119-w (independent meta-analysis of 6 randomized studies: no significant benefit on acuity or structure)
  • Grewal MK, Sivapathasuntharam C, Chandra S, et al. J Clin Med 2020;9(4):1001. doi: 10.3390/jcm9041001 (670 nm at home in intermediate AMD: no functional or structural change)
  • Shinhmar H, Hogg C, Neveu M, Jeffery G. Sci Rep 2021;11:22872. doi: 10.1038/s41598-021-02311-1 (single 670 nm exposure, colour contrast thresholds)
  • Ostrin LA, Schill AW. Ophthalmic Physiol Opt 2024;44(2). doi: 10.1111/opo.13272 (consumer red-light instruments exceeded exposure limits)
  • Liu H, Yang Y, Guo J, Peng J, Zhao P. JAMA Ophthalmol 2023;141(7). doi: 10.1001/jamaophthalmol.2023.1548 (retinal damage after repeated low-level red light)

Dry Eye

  • Semp DA, Beeson D, Sheppard AL, Dutta D, Wolffsohn JS. Clin Optom (Auckl) 2023;15:9-27. doi: 10.2147/OPTO.S350185 (systematic review — lipid-containing artificial tears benefit evaporative dry eye)

Floater Supplements

Floater Surgery & Laser (YAG Vitreolysis / Vitrectomy)

Treatments We're Watching

Macular Pucker / Epiretinal Membrane

High Eye Pressure / Glaucoma

  • Kim J, Aschard H, Kang JH, et al. Ophthalmology 2021;128(6):866-876. doi: 10.1016/j.ophtha.2020.12.009 (caffeine & IOP, UK Biobank gene-diet study)
  • J Curr Ophthalmol 2026. doi: 10.4103/joco.joco_43_26 (newer SR+MA, caffeine & IOP in healthy & glaucomatous populations)
  • De Moraes CG, John SWM, Williams PA, et al. JAMA Ophthalmol 2022;140(1):11-18. doi: 10.1001/jamaophthalmol.2021.4576 (nicotinamide phase 2 RCT)
  • Sherratt-Mayhew S, Bisp M, Page C, Koo WSV. Cureus 2026. doi: 10.7759/cureus.110196 (newer SR, nicotinamide & mean deviation in glaucoma)
  • Hui F, Tang J, Williams PA, et al. Clin Exp Ophthalmol 2020;48(7):903-914. doi: 10.1111/ceo.13818 (nicotinamide crossover RCT)
  • Steigerwalt RD Jr, Belcaro G, Morazzoni P, et al. Clin Ophthalmol 2010;4:471-476. doi: 10.2147/opth.s9899 (Mirtogenol + latanoprost)
  • Jabbarpoor Bonyadi MH, et al. BMC Complement Altern Med 2014;14:399. doi: 10.1186/1472-6882-14-399 (saffron & IOP)
  • Peritore G, et al. PLoS One 2023;18(10):e0291836. doi: 10.1371/journal.pone.0291836 (citicoline systematic review)
  • Icel E, Akmaz O. Beyoglu Eye J 2026;11(1):1-12. doi: 10.14744/bej.2026.93709 (newer SR, citicoline in ophthalmology)

How We Monitor for Updates

We scan the internet and scientific journals every week for updates, corrections, and new research related to the studies we are following. If a link moves, a DOI is corrected, or a key paper is superseded, we update this page and note the change.

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