The Best Natural Foods For Healthy Eyes

The Best Natural Foods For Healthy Eyes

Keeping our eyes healthy is important, especially as we get older. Globally, around 250 million people suffer from varying degrees of vision loss (1). Although not every case of vision loss is preventable, there are actions that a person can take to reduce their risk of losing their sight.

The leading causes for loss of vision include: cataracts, age-related macular degeneration (AMD), glaucoma, and diabetic retinopathy (a complication of diabetes). (1) All of these are much more likely to affect people as they age. As well as having regular eye tests, there are various diet and lifestyle measures we can all take to protect the health of our eyes and our vision. (1)

The eye is especially sensitive to damage from oxidative stress, which increases the risk of poor eye health. Oxidative stress is a type of damage that occurs inside of a cell, due to certain unstable compounds that are formed when oxygen is used by the cell to make energy. These compounds are known as free radicals.

Eyes have an especially high rate of oxygen consumption, along with a high concentration of delicate polyunsaturated fatty acids, which are especially prone to damage by free radicals. (1) Furthermore, the eyes are constantly exposed to high-energy visible light. This combination of factors creates high levels of the compounds that can trigger oxidative damage to the eyes.

It, therefore, makes sense to eat a diet rich in antioxidants as a starting point. This means a diet high in plants; lots of different and colorful fruits and vegetables, plus whole grains, pulses, nuts, and seeds.

Foods for Eye Health

More Tips for Better Eye Health

  • Always wear sunglasses in the sun, and make sure they have 100% UV protection to filter out both UVA and UVB rays.
  • Avoid smoke from cigarette smoking, being around secondhand smoke, and other pollution such as traffic fumes.
  • Take regular screen breaks to prevent eyestrain - look away from your computer and towards something more distant at least once every 10 minutes and have a 5-10 minute break away from the screen every hour if possible.
  • Eating a diet high in unhealthy fats is associated with an increased risk of AMD (2), so limit food sources of these, such as processed foods, fried foods, and fatty meat.
  • Limit or avoid added sugar, sugary drinks, and refined carbohydrates (white bread, pastry, white rice, white pasta etc.) as these produce blood sugar imbalances, which may be damaging to eye health long-term (19).
  • Maintaining a healthy weight reduces the risk of developing eye problems (25).

Data Sources and References

  1. Haddad HM. Nutrition and Eye Health Metab Pediatr Syst Ophthalmol (1985). 1994;17(1-4):41-4. 8719285
  2. Chua B, Flood V, Rochtchina E, Wang JJ, Smith W, Mitchell P. Dietary fat and fish intake and age-related maculopathy Arch Ophthalmol. 2006 Jul;124(7):981-6. doi: 10.1001/archopht.124.7.981. 16832021
  3. Fehér J, Kovács B, Kovács I, Schvöller M, Corrado Balacco G. Improvement of visual functions and fundus alterations in early age-related macular degeneration treated with a combination of acetyl-L-carnitine, n-3 fatty acids, and coenzyme Q10 Orv Hetil. 2007 Dec 2;148(48):2259-68. doi: 10.1556/OH.2007.28250. 18039616
  4. Pasquale LR, Hyman L, Wiggs JL, Rosner BA, Joshipura K, McEvoy M, McPherson ZE, Danias J, Kang JH. Association of Dietary Nitrate Intake With Primary Open-Angle Glaucoma: A Prospective Analysis From the Nurses' Health Study and Health Professionals Follow-up Study Ophthalmology. 2016 Nov;123(11):2318-2327. doi: 10.1016/j.ophtha.2016.07.014. Epub 2016 Aug 20. 27554035
  5. Humphries JM, Khachik F. Fruits and vegetables that are sources for lutein and zeaxanthin: the macular pigment in human eyes J Agric Food Chem. 2003 Feb 26;51(5):1322-7. doi: 10.1021/jf026073e. 12590476
  6. Sekikawa T, Kizawa Y, Li Y, Miura N. Effects of anthocyanin, astaxanthin, and lutein on eye functions: a randomized, double-blind, placebo-controlled study J Clin Biochem Nutr. 2023 Jan;72(1):74-81. doi: 10.3164/jcbn.22-65. Epub 2022 Oct 18. 36777084
  7. Bartlett HE, Eperjesi F. A 12-week lutein supplementation improves visual function in Chinese people with long-term computer display light exposure Clin Nutr. 2008 Apr;27(2):218-27. doi: 10.1016/j.clnu.2008.01.003. Epub 2008 Mar 4. 18294739
  8. Musch DC. Secondary analyses of the effects of lutein/zeaxanthin on age-related macular degeneration progression: AREDS2 report No. 3 JAMA Ophthalmol. 2014 Feb;132(2):139-41. doi: 10.1001/jamaophthalmol.2013.7443. 24309835
  9. Abdel-Aal el-SM, Akhtar H, Zaheer K, Ali R. The Effect of Lutein on Eye and Extra-Eye Health Nutrients. 2013 Apr 9;5(4):1169-85. doi: 10.3390/nu5041169. 23571649
  10. Moeller SM, Jacques PF, Blumberg JB. Dietary sources of lutein and zeaxanthin carotenoids and their role in eye health J Am Coll Nutr. 2000 Oct;19(5 Suppl):522S-527S. doi: 10.1080/07315724.2000.10718975. 11023002
  11. Ma L, Liu R, Du JH, Liu T, Wu SS, Liu XH. What do we know about the macular pigment in AMD: the past, the present, and the future Nutrients. 2016 Jul 12;8(7):426. doi: 10.3390/nu8070426. 27420092
  12. Hankinson S, Stampfer MJ. Dietary carotenoids, vitamins A, C, and E, and advanced age-related macular degeneration. Eye Disease Case-Control Study Group JAMA. 1994 Nov 9;272(18):1455-6. doi: 10.1001/jama.1994.03520180079040. 7933430
  13. Huang W, Yan Z, Li D, Ma Y, Zhou J, Sui Z. Protective Effects of Blueberry Anthocyanins against H2O2-Induced Oxidative Injuries in Human Retinal Pigment Epithelial Cells Oxid Med Cell Longev. 2018 Feb 22;2018:1862462. doi: 10.1155/2018/1862462. eCollection 2018. 29682153
  14. Wang Y, Zhao L, Wang D, Huo Y, Ji B. The protective effects of berry-derived anthocyanins against visible light-induced damage in human retinal pigment epithelial cells J Sci Food Agric. 2016 May;96(7):2494-503. doi: 10.1002/jsfa.7370. Epub 2015 Sep 8. 26250597
  15. Wang Y, Zhang D, Liu Y, Wang D, Liu J, Ji B. Blueberry anthocyanins: protection against ageing and light-induced damage in retinal pigment epithelial cells J Sci Food Agric. 2015 Mar 30;95(5):936-44. doi: 10.1002/jsfa.6765. Epub 2014 Jul 15. 24909670
  16. Liu Y, Liu M, Chen Q, Liu GM, Cao MJ, Sun L, Lu Z, Guo C. Visible Light-Induced Lipid Peroxidation of Unsaturated Fatty Acids in the Retina and the Inhibitory Effects of Blueberry Polyphenols J Agric Food Chem. 2018 Dec 5;66(48):12730-12740. doi: 10.1021/acs.jafc.8b05272. Epub 2018 Nov 21. 30411897
  17. Gopinath B, Liew G, Kifley A, Lewis JR, Bondonno C, Joachim N, Hodgson JM, Mitchell P. Consumption of eggs and the 15-year incidence of age-related macular degeneration J Acad Nutr Diet. 2018 Dec;118(12):2311-2314. doi: 10.1016/j.jand.2018.07.012. Epub 2018 Oct 17. 30342988
  18. Ma L, Liu R, Du JH, Liu T, Wu SS, Liu XH. A positive effect of egg consumption on macular pigment and healthy vision: a systematic review and meta-analysis of clinical trials Nutrients. 2016 Jul 12;8(7):426. doi: 10.3390/nu8070426. 27420092
  19. Chiu CJ, Milton RC, Klein R, Gensler G, Taylor A. Association between dietary glycemic index and age-related macular degeneration in nondiabetic participants in the Age-Related Eye Disease Study Am J Clin Nutr. 2007 Oct;86(4):1210-8. doi: 10.1093/ajcn/86.4.1210. 17921404
  20. Trempe CL. Oral zinc in macular degeneration Arch Ophthalmol. 1992 Nov;110(11):1517. doi: 10.1001/archopht.1992.01080230015002. 1444901
  21. Kishimoto Y, Yoshida H, Kondo K. Clinical Applications of Astaxanthin in the Treatment of Ocular Diseases: Emerging Insights Mar Drugs. 2016 Feb 5;14(2):35. doi: 10.3390/md14020035. 26861359
  22. Davinelli S, Nielsen ME, Scapagnini G. "Therapeutic uses of natural astaxanthin: An evidence-based review focused on human clinical trials" Nutrients. 2018 Apr 22;10(4):522. doi: 10.3390/nu10040522. 29690549
  23. Sekikawa T, Kizawa Y, Li Y, Miura N. Effects of anthocyanin, astaxanthin, and lutein on eye functions: a randomized, double-blind, placebo-controlled study J Clin Biochem Nutr. 2023 Jan;72(1):74-81. doi: 10.3164/jcbn.22-65. Epub 2022 Oct 18. 36777084
  24. Jampol LM. A randomized, placebo-controlled, clinical trial of high-dose supplementation with vitamins C and E, beta carotene, and zinc for age-related macular degeneration and vision loss: AREDS report no. 8 Arch Ophthalmol. 2001 Oct;119(10):1533-4. doi: 10.1001/archopht.119.10.1533. 11594957
  25. Man RE, Sabanayagam C, Chiang PP, Li LJ, Noonan JE, Wang JJ, Wong TY, Cheung GC, Tan GS, Lamoureux EL. Obesity and risk of age-related eye diseases: a systematic review of prospective population-based studies JAMA Ophthalmol. 2016 Mar;134(3):251-7. doi: 10.1001/jamaophthalmol.2015.5103. 26720805
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