Researchers are looking into the link between gut health and dry eye disease, especially in people with Type 2 Diabetes. This condition often involves issues like nerve changes in the eye, inflammation, and problems with the oil glands in the eyelids. The review looked at how the gut microbiome and certain substances called short-chain fatty acids might affect these symptoms.
While human studies show that people with Type 2 Diabetes often experience dry eye issues, there are currently no human studies that directly link gut health to these specific eye symptoms. However, animal studies did show that using probiotics and prebiotics led to improvements in dry-eye-like features and inflammation. These results suggest that the gut might influence how the eye responds to stress.
It is important to note that these findings are based on animal models and experimental studies rather than direct human clinical trials. Because of this, the exact role of gut-derived metabolites in human dry eye is not yet clear. These findings are early and do not currently offer a proven treatment for dry eyes.
