Top 10 Lifestyle Interventions for Glaucoma

#9: Omega-3 Fatty Acids — Supporting Blood Flow and Reducing Inflammation

Why This Matters for Glaucoma

Omega-3 fatty acids (found in fish, flaxseed, and walnuts) may support ocular blood flow and reduce inflammation, both of which are important in glaucoma.

Glaucoma is not just about eye pressure—it also involves:

  • Blood flow to the optic nerve
  • Inflammation
  • Cellular stress

Omega-3 fatty acids may positively influence all three.

What the Science Shows

  • Improved vascular function:
    Omega-3s are associated with better blood vessel health and may support circulation to the optic nerve.

  • Role in glaucoma risk:
    Some studies suggest that dietary fat composition—particularly the balance of omega-3 to omega-6 fatty acids—may be linked to glaucoma risk.

  • Anti-inflammatory effects:
    Omega-3s help reduce systemic inflammation, which may contribute to neuroprotection.

Why Does This Help?

Omega-3 fatty acids may:

  • Improve blood flow to the optic nerve

  • Reduce inflammatory signaling

  • Support cell membrane health and function

  • Promote overall vascular stability

What to Watch For

  • Diets high in omega-6 fats (processed foods, seed oils) may offset benefits
  • Supplement quality and formulation can vary

What Should You Do?

Increase intake of:

  • Fatty fish (salmon, sardines, mackerel)
  • Flaxseeds and chia seeds
  • Walnuts

Or consider:

  • High-quality omega-3 supplements (EPA/DHA)

Bottom Line

Omega-3 fatty acids support vascular and anti-inflammatory pathways that are increasingly recognized as important in glaucoma.

👉 A simple dietary shift may help support long-term optic nerve health.

Key References

  1. Kai JY, Dong XX, Li DL, et al. Association of plasma omega-3 fatty acids with primary open-angle glaucoma. Invest Ophthalmol Vis Sci. 2025.
  2. Wang YE, Tseng VL, Yu F, Caprioli J, Coleman AL. Association of dietary fatty acid intake with glaucoma in the United States. JAMA Ophthalmol. 2018.
  3. Nguyen CT, Bui BV, Sinclair AJ, Vingrys AJ. Dietary omega-3 fatty acids decrease intraocular pressure with age by increasing aqueous outflow. Invest Ophthalmol Vis Sci. 2007.
  4. Kalogerou M, Kolovos P, Prokopiou E, et al. Omega-3 fatty acids protect retinal neurons in the DBA/2J hereditary glaucoma mouse model. Exp Eye Res. 2018.
  5. Tourtas T, Birke MT, Kruse FE, Welge-Lüssen UC, Birke K. Preventive effects of omega-3 and omega-6 fatty acids on peroxide-mediated oxidative stress responses in primary human trabecular meshwork cells. PLoS One. 2012.
  6. Ye H, Liu Y, Xu Z, Wei X. Fish oil in glaucoma treatment: from biological functions to clinical potential. Mol Nutr Food Res. 2023.
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