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

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Synopsis

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

Bilberry (Vaccinium myrtillus) has a long history of traditional use in Europe for various eye conditions, including bloodshot or irritated eyes. Folk medicine references suggest bilberry fruit or extracts were consumed to support vision and soothe eye discomfort, partly due to anecdotal reports that Royal Air Force pilots in World War II used bilberry jam to enhance night vision. The primary compounds of interest in bilberry are anthocyanins, which are thought to have antioxidant and anti-inflammatory properties.

However, the specific use of bilberry for "bloodshot eyes"—a condition typically caused by irritation, dryness, or minor vascular congestion—has minimal direct scientific support. Most clinical research has focused on bilberry's effects on night vision, retinal health, and diabetic retinopathy, rather than acute redness or vascular congestion. While some small studies suggest potential benefits for ocular blood flow and general eye fatigue, robust evidence for its efficacy in treating or preventing bloodshot eyes is lacking. Thus, bilberry's use for this particular indication is primarily based on tradition rather than strong scientific validation.

Overall, while bilberry is widely used in traditional herbalism for eye health, its specific effects on bloodshot eyes remain under-researched and are supported by only low-level evidence. Individuals considering bilberry for eye redness should consult a healthcare professional and not rely on it as a primary treatment.

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