Evidence supporting the use of: Bilberry
For the health condition: Eyes (red or itching)

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Bilberry (Vaccinium myrtillus) has a long history of traditional use in Europe for supporting eye health, including the relief of red or itching eyes. Folk medicine has often recommended bilberry for eye strain, cataracts, and poor night vision. The traditional rationale was largely based on anecdotal observations, such as reports from World War II pilots who claimed their night vision improved after consuming bilberry jam, although these stories remain unsubstantiated. The berries are rich in anthocyanins, plant pigments with antioxidant and anti-inflammatory properties, which are thought to contribute to their beneficial effects on ocular tissues.

Despite this traditional use, the scientific evidence specifically supporting bilberry for red or itching eyes is limited and not robust. While some clinical and animal studies suggest that anthocyanins may help improve capillary strength and reduce inflammation, few high-quality clinical trials have focused on bilberry's effects on common eye irritation symptoms like redness or itching. Most research has examined its potential for improving night vision, slowing the progression of retinal diseases, or reducing eye fatigue. Thus, its use for red or itching eyes relies more on traditional practice than strong scientific validation. Bilberry remains popular in herbal and alternative medicine circles for general eye support, but consumers should recognize that evidence for this specific indication is modest at best.

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