Do you have dry eyes? It’s your microbiota’s fault!

Do you have dry eyes? It’s your microbiota’s fault!
Do you have dry eyes? It’s your microbiota’s fault!

The eye has its own microbiota, we sometimes speak of a microbiome or ocular microbiota: a set of micro-organisms (bacteria, viruses and other fungi) which help to keep our eye in a healthy environment. However, if the eye is diseased, does this mean that this microbiota is unbalanced? Yes according to a team of researchers from the American Society for Biochemistry and Molecular Biology (ASBMB), which presented the results of its work at its congress in April 2024.

What can we learn from this study? That the ocular microbiota of people who have dry eyes is different from those who do not have this problem but above all that we can now identify the bacteria which are involved.

So people who have dry eyes have a higher concentration of bacteria. Acinetobacter while people who do not have dry eyes have an ocular microbiota richer in Streptococcus And Pedobacter. This discovery is important because it opens the way to new management of the problem of dry eyes. Indeed, we will now be able to develop treatments which instead of trying to treat the symptom (dry eyes) can attack the cause: dysbiosis (imbalance) of the ocular microbiota and therefore be more effective..

What links with the intestinal microbiota?

As our body is nothing more or less than an immense environment that constantly interacts, we can suspect that the ocular microbiota is linked in one way or another to our intestinal microbiota. This is all the more true as the intestinal microbiota plays a major role in our health, with its 100,000 billion microorganisms.

Several studies have already suggested that an imbalance in the intestinal microbiota is involved in the occurrence and progression of ocular pathologies. Work carried out this time by a team from Singapore and published in May 2024 shows that “the intestinal microbiota regulates inflammation of the eye and, conversely, severe inflammation of the ocular surface leads to an alteration of the intestinal microbiome.”And this would be particularly true in cases of dry eyes.

If you have dry eyes, there is no point in taking care of the good health of your microbiotain particular by consuming fermented foods (yogurt, fermented cabbage, cheese, etc.) and fruits and vegetables (rich fibers which behave like prebiotics, which feed good bacteria).

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