A Daily Tea Habit May Reduce Glaucoma Risk

Glaucoma, a leading cause of blindness worldwide, is characterized by fluid pressure buildup (intraocular pressure) that damages the optic nerve.

Currently, glaucoma affects 57.5 million people globally, and by 2020 may affect 65.5 million. Individuals with diabetes are at greater risk for developing glaucoma.

Earlier studies indicated caffeine can influence intraocular pressure, but did not compare the effects of decaffeinated and caffeinated drinks on glaucoma risk. So, a group of researchers looked at data from the U.S. 2005-2006 National Health and Nutrition Examination Survey (NHANES) because that year the survey included glaucoma eye test information.

The investigators found, of the 1,678 participants who submitted complete eye test results to the NHANES, 84 had developed glaucoma.

The NHANES also queried participants about their consumption of caffeinated and decaffeinated drinks (e.g., soft drinks, teas, coffee), and the data showed those who drank hot tea daily had a lower glaucoma risk. Reduced risk was not linked with coffee (caffeinated or decaf), or with decaffeinated tea, iced tea, or soft drinks.

Since the number of participants with glaucoma was small, and the study was observational no definite cause and effect conclusions were drawn. However, findings suggest the antioxidants, anti-inflammatory, and neuro-protective chemicals in tea may defend against the oxidation and neuro-degeneration that leads to glaucoma.

“Further research is needed to establish the importance of these findings and whether hot tea consumption may play a role in the prevention of glaucoma,” wrote the authors.

The study was published online in the British Journal of Ophthalmology.

Sources: BMJ; Glaucoma.org
Photo credit: Naama ym

More Articles

Diabetic shoes are important as a common side effect of diabetes is "peripheral neuropathy," which causes loss of sensation in the extremities....

There’s something inherently playful about bouncing, which is why so many people enjoy rebounding. Rebounding, or exercising on a mini-trampoline...

Do not let pictures of yoga experts with their bodies twisted into bizarre, compact shapes fool you. Even people with stiff muscles, creaky joints...

One of the hardest parts about adopting a low-carb diet is giving up traditional baked goods and sweets. The good news, however, is that low-carb...

Insulin injections are a way of life for many people with type 1 or type 2 diabetes, but for some people, they can be a little intimidating at...

More Articles

While most physicians will tell you that your blood glucose will not be impacted by a flu shot, anecdotally there are reports of increased...

You may think beer, wine, and liquor would be categorized as food, but in reality, alcohol is a drug. Just like medications, alcohol has powerful...

Diabetic shoes are important as a common side effect of diabetes is "peripheral neuropathy," which causes loss of sensation in the extremities....

One of the hardest parts about adopting a low-carb diet is giving up traditional baked goods and sweets. The good news, however, is that low-carb...

With such a marked increase in the number of new diabetes cases, more people are wondering if type 1 diabetes...

Experts estimate that somewhere in the world a person with diabetes will lose a lower extremity every half minute due to a wound. One of the...

Anyone can develop a fungal skin infection, but people with diabetes are more prone to them. A common cause of fungal infections in those with...

Many diabetics struggle to control the sudden blood sugar spikes that can occur after meals. Knowing why blood sugar spikes happen and making...

Do not let pictures of yoga experts with their bodies twisted into bizarre, compact shapes fool you. Even people with stiff muscles, creaky joints...

Insulin injections are a way of life for many people with type 1 or type 2 diabetes, but for some people, they can be a little intimidating at...

With diabetes, it all used to be really simple: Type 1 diabetes was known as “childhood-onset,” and type 2 was “adult-onset” diabetes. The cause...

People often get diabetes and hypoglycemia confused with one another, believing that they are two different names for the same condition. In...

Diabetes is a health condition that disrupts the body’s normal production of insulin. Currently, more than one million Americans are diagnosed...

The medical community relies heavily on the goodwill of its citizens, as giving blood and organ donations help save thousands of lives every year...

There are several misconceptions about Diabetes. Learn more about the top misconceptions vs. facts surrounding Type 2 Diabetes below.

86...