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Is Green Tea Good For Glaucoma?

Green tea is one of the natural beverages with the greatest medicinal potential in the world, no one doubts that. The reason is that their properties are increasing every day. And this is not only due to the occurrences of some people, but to various scientific studies that are carried out around it throughout the world. This is how it is transforming itself into a leading ally for practically anything.

Various investigations have shown that the consumption of its extract protects against the following degenerative diseases:

Cancer Prevention. The ability of green tea to prevent cancer has been the subject of innumerable studies suggesting that its components, particularly the catechins, are responsible for its anticancer properties.

Prevention of Cardiovascular Diseases. Not only prevents atherosclerosis due to its antioxidant effects. It also has antithrombotic properties which regulates blood circulation. These two properties of Green Tea prevent many cardiovascular ailments.

Is Green Tea Good For Glaucoma?

Is Green Tea Good For Glaucoma?

Green tea is good for glaucoma and the benefits are due to the catechins, especially the majestic EGCG, as the great antioxidant substances able to reach the eye, after being absorbed in the tract. Also vitamin E, vitamin C, zeaxanthin, and lutein have a direct influence in protecting the eye against glaucoma and other problems of the eye caused by degenerative processes.

Many speak of its antioxidant potential as one of the main powers of green tea. And they have a lot of reason. But where are these properties contained in this rich infusion? While there are many beneficial substances in green tea, the galate epigallocatechins, much more known simply as EGCG are its main supporters.

What are EGCG? They are catechins, antioxidants, with a potential that has no boundaries until now. That means that every day you will find more benefits for your health, which are really diverse and it would not be a surprise if scientific researches bring more in a near future.

While not all of its benefits are clearly proven, it is estimated that they could be more than useful for some circumstances. At the moment, you can take advantage of this

EGCG consumption potentially for these purposes.

According to an investigation carried out in China, green tea could become a great protective protector on sight, and especially with regard to degenerative problems such as glaucoma.

This research consisted of giving green tea in the form of an extract to lab rats and then analyzing their eye tissues. The results suggested that catechin was absorbed by different parts of the eye with the highest being the retina which is a tissue that lines the back of the eye and lowest being the cornea which is the outer layer of the eye. The study also showed that the antioxidant activity lasted up to 20 hours after the green tea extract was given to drink.

In this way, the antioxidant power of this drink could be beneficial against glaucoma and other eye problems that lead to tissue degeneration.

In any case, medical researchers from the Department of Ophthalmology and Visual Sciences of the Chinese University of Hong Kong affirmed that their findings suggest that the consumption of green tea could offer great protection to the eyes. However, other studies will be necessary to confirm the protective effect of this healing beverage.

Also the University of Maryland of the United States of America has included green tea as one of the natural elements that help fight glaucoma. It is recommended consuming it in tablets or, simply, preparing the tea directly from its leaves, as it was done for centuries.


Despite the numerous attempts to evaluate the efficacy of this in the treatment of glaucoma, only a few studies have been published so far with results.


  1. National Cancer Institute. (2021). Tea and Cancer Prevention. https://www.cancer.gov/about-cancer/causes-prevention/risk/diet/tea-fact-sheet
  2. National Institutes of Health. (2016). Green tea and prevention of cardiovascular disease. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5214562/
  3. Mancini, C., & Bucolo, C. (2018). Green Tea in Glaucoma: An Updated Review. Nutrients, 10(10), 1327. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6213529/
  4. National Center for Complementary and Integrative Health. (2021). Green Tea. https://www.nccih.nih.gov/health/green-tea

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Team PainAssist
Team PainAssist
Written, Edited or Reviewed By: Team PainAssist, Pain Assist Inc. This article does not provide medical advice. See disclaimer
Last Modified On:August 17, 2023

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