Gut bacteria may soothe tired Eyes—A trial puts it to the test
NCT ID NCT07737938
First seen Jul 30, 2026 · Last updated Jul 31, 2026 · Updated 1 time
Summary
This trial tests whether two specific probiotics—Bifidobacterium longum BL531 and Lactobacillus reuteri LR1349—can reduce eye fatigue caused by blue light and long screen time. Middle-aged adults with digital eye strain take daily probiotic supplements or a placebo for several weeks. Researchers measure changes in eye discomfort and dry eye symptoms using standard questionnaires.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- probiotic supplements containing Bifidobacterium longum BL531 and Lactobacillus reuteri LR1349
- What this could lead to
- If effective, these probiotics could offer a simple, non-drug way to reduce eye discomfort from prolonged screen time.
- What could go wrong
- This is an early-stage trial with a moderate number of participants. The effect may be small or no better than placebo, and results may not apply to everyone.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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National Taiwan Normal University
Taipei, 106, Taiwan
More trials for these conditions
Other studies related to the condition(s) this trial covers.