Evidence supporting the use of: Eyebright
For the health condition: Bloodshot Eyes

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Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Eyebright (Euphrasia officinalis) has a long history of traditional use for various eye conditions, including bloodshot or irritated eyes. Its use can be traced back to European herbal medicine as early as the Middle Ages, where it was commonly made into teas, compresses, or eye washes. The herb’s name itself reflects its historical association with eye health. Proponents traditionally believed that eyebright could reduce redness, inflammation, and discomfort in the eyes, though these beliefs were based on empirical use and the “doctrine of signatures”—the historical theory that herbs resembling certain body parts could treat those parts.

Despite its traditional use, scientific evidence supporting eyebright for bloodshot eyes is sparse and of low quality. Only a handful of small clinical studies and laboratory investigations have examined eyebright’s effects, typically focusing on general anti-inflammatory properties or use in mild conjunctivitis. The results are inconclusive, and there is a lack of well-designed, large-scale randomized controlled trials. As of now, no regulatory agencies recognize eyebright as an effective treatment for bloodshot eyes. Thus, its use persists mostly due to tradition rather than robust scientific validation.

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Products containing Eyebright

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