Your morning cup of tea may have more power than you thought. If not treated early on, it can lead to loss of vision.Previous research has suggested that caffeine can alter intraocular pressure but the team says they are the first to look at the potential impact of decaffeinated and caffeinated drinks on glaucoma risk.
A study presented at the annual meeting of the American Academy of Ophthalmology (New Orleans, 11-14 November) has found that women who take estrogen-only hormone replacement therapy (HRT) have a lower risk of glaucoma.
Glaucoma the leading cause of blindness affects 57.5 million people and is expected to increase to 65.5 million worldwide by 2020 and India accounted for approximately 11.2 million persons.
"Glaucoma becomes more common with age, and is a significant cause of blindness in the UK". The nationally representative annual survey of several U.S. adults and children is based on interviews, physical examinations, and blood samples of all the participants.
But Dr Graham Wheeler, a medical statistician at University College London, said: "The authors did not explore how, biologically, this association might work, which means the results from this study say nothing about one thing causing another". Among the 1,678 participants who had full eye test results, including photos, 84 (five per cent) adults had developed the condition.
As part of the research, participants were asked how often they drank a variety of drinks including tea, coffee and fizzy drinks throughout the year.
Compared with those who did not drink hot tea every day, those who did, had a lower glaucoma risk, the data showed.
Recently, scientists from Brown University in Providence, RI, and the University of California in Los Angeles have made a decision to compare how the consumption of various drinks - including hot tea, decaffeinated tea, iced tea, coffee, and soft drinks - influence the risk of glaucoma.
The scientists believe the antioxidants and natural anti-inflammatory chemicals in tea may play a role in protecting against this process.
That being said, the researchers accept that there are limitations in the study including a lack of data on the type of tea drunk, possible errors in diagnosis and the fact that very few participants had glaucoma.
Here are some other benefits of tea that would make you even happier about your daily cuppa.