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Drinking coffee can actually relieve dry eyes.

Published: 2026-06-07 Author: World Gafei

Last Updated: 2026/06/07, In recent years, studies have shown that drinking coffee can reduce the risk of cancer, diabetes, gallstones and Parkinson's disease. Now, ophthalmologists have found that caffeine can also treat dry eyes.

In recent years, studies have shown that drinking coffee can reduce the risk of cancer, diabetes, gallstones and Parkinson's disease. Now, ophthalmologists have found that caffeine can also treat dry eyes.

Xerophthalmia can cause pain and tingling, and some patients with severe xerophthalmia may even impair their eyesight.

Researchers at Xiamen Kehong Eye Hospital studied 78 patients with xerophthalmia. The results showed that patients' tears increased significantly as long as they took caffeinated pills. The researchers say the focus is not only on caffeine, but also on a person's ability to metabolize caffeine. According to Chen Shanna, deputy director of Xiamen Kehong Eye Hospital, if a patient's DNA changes in two groups, the body's ability to metabolize caffeine will change. After taking caffeine, the body produces more tears. Not only tears, but by the same principle, caffeine also increases saliva and digestive juice secretion.

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