Is coffee really bad for eyes?

Is coffee really bad for eyes?

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0 thoughts on “Is coffee really bad for eyes?”

  1. Yes. But only if you drink your coffee by taking the very recently boiling water brewed coffee and pouring it into your eyeballs. In such a case it will be harmful to your eyes.

  2. Hope, you are fine, and enjoying best in life.
    I would like to say that all things are good when consumed in moderation, and so is caffeine. An excessive consumption of coffee or caffeinated beverages can suddenly increase blood sugar levels, which can lead to blurred vision or spasms of the eyelid (jumping eye). Drinking too much caffeine can also cause a burning sensation and may make your eyes a little tingly. Dry eyes can also increase the risk of inflammation and might decrease your attention span. Despite the fact that these symptoms are not considered dangerous, they can cause discomfort and disrupt your daily activities.
    According to a study by researchers at Brigham and Women’s Hospital and, of Harvard Medical School, there is a direct correlation between people who drink three or more cups of coffee a day and their chance to develop glaucoma. This eye disease is characterized by high pressure on the optic nerve, which can diminish the visual field, and even cause blindness. According to the results of the study, drinking three or more cups of coffee per day would contribute to the accumulation of deposits inside the eyes, an ophthalmological syndrome called “exfoliation”. This syndrome does not systematically cause glaucoma, but it does increase the risk of developing it. Family history is also known to have an impact on the risks of contracting glaucoma. The researchers concluded that consuming three cups of coffee (or more) per day increases the risk of exfoliation glaucoma by 66%, compared to people who do not drink caffeinated coffee.
    However, as of now the research on the correlation between caffeine and glaucoma remains incomplete. Indeed, the researchers of Brigham and Women’s Hospital and, of Harvard Medical School were the first to evaluate this association within the US population. Further research will have to be done within different populations to better validate the link between caffeine consumption and glaucoma.
    When consumed in reasonable quantities, coffee isn’t bad for your vision. However, short-term or long-term over-consumption can have negative consequences on your eye health.
    Hope you get an answer,
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  3. Maybe. There is a 2012 study that looked at the association between caffeine consumption and a condition called exfoliation glaucoma, a condition where fluid builds up inside the eye, putting pressure on the optic nerve, leading to a degree of sight loss and, in serious cases, total blindness. The condition can also cause an abnormal build-up of cells in the eye, a kind of “optical dandruff”.
    This National Institutes of Health-funded study appeared in the peer-reviewed journal Investigative Ophthalmology and Visual Science and comes from researchers at Brigham and Women’s Hospital and Harvard Medical School, along with other US institutions. But there are a number of reasons to remain cautious about interpreting its conclusions.
    As a start, it was based on data from two prospective cohort studies in which people are asked to recall over an extended period of time what sources of caffeine were in their diets and how much they consumed. This can be unreliable. Further, even in caffeine users, the incidence of exfoliation glaucoma was small, which can lead to statistical anomalies.
    Perhaps even more significant is that the increased probability of exfoliation glaucoma was most pronounced in people who already had a family history of glaucoma from any cause.
    Oddly, there was no increase in the likelihood of exfoliation glaucoma with consumption of caffeine from other sources, like caffeinated soda, tea or chocolate. And lest one conclude that the cause was components in coffee other than caffeine, no association was found with decaffeinated coffee.
    On the other hand supporting the hypothesis that exfoliation glaucoma is associated with consumption is the observation that the problem is observed at high levels in Scandinavia, where coffee consumption is also high. Further, the researchers believe that a possible mechanism for the association may be the known increase in blood homocysteine levels that accompany coffee consumption.
    It’s also important to note that while the association was higher in women than men, the data in the studies were limited to a largely Caucasian population. African-Americans in particular have other issues related to glaucoma.
    (There is also a less dramatic, unrelated correlation between excess caffeine consumption and “dry eye” which is unlikely to lead to permanent vision impairment.)
    So if the association with exfoliation glaucoma is real, how much coffee is too much? The data suggest that the correlation becomes significant for people who drink three or more cups of coffee a day containing 135 mg of caffeine per cup. Like so many things in life, the key to avoiding exfoliation glaucoma if you like may simply be moderation.


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