What Your Microbiome May Reveal Dry Eye and the Gut:
Dry eye is usually discussed as a problem of the tear film, eyelids, screen habits, contact lenses, aging, or dry environments. Today, researchers are also paying closer attention to a less obvious connection: the gut microbiome. The gut microbiome is the community of bacteria and other microorganisms living in the digestive system. These microorganisms help the body digest food, produce useful compounds, support immune balance, and regulate inflammation. Because the immune system influences many parts of the body, an imbalance in the gut may have effects beyond digestion. This is where the gut-eye connection becomes interesting. The surface of the eye is delicate and depends on a stable tear film, healthy eyelids, and balanced inflammation. When the gut microbiome becomes disrupted, sometimes called gut dysbiosis, the body may become more prone to inflammatory responses. Emerging studies suggest this may play a role in ocular surface health, including dry eye disease.
This does not mean that gut health alone causes dry eye, or that probiotics or diet changes can replace eye treatment. Dry eye is a multifactorial condition, which means several factors may contribute at the same time. However, digestive health may be one part of the wider picture, especially for people with recurring dryness, autoimmune conditions, allergies, or chronic inflammation.
Daily habits that may support both gut and eye health include:
Managing allergies,
Eating a balanced diet with vegetables, fruits, whole
Drinking enough water throughout the day
autoimmune conditions, or chronic health concerns with medical guidance
Taking regular breaks from screens
Getting consistent sleep
grains, and healthy fats
At Bumrungrad , patients with persistent dry eye can receive a detailed eye evaluation to identify possible causes and guide appropriate care. Depending on each patient’s needs, treatment may include tear support, eyelid care, lifestyle advice, or advanced therapies.
The gut-eye connection is still an evolving area of science, but it highlights an important message: healthy eyes may be supported by caring for the body as a whole.
Bumrungrad Eye Excellence Center
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