Synopsis

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

Blueberry (unspecified species) has a traditional reputation for supporting eyesight, which primarily stems from anecdotal use and folklore rather than robust scientific research. This traditional use is often conflated with that of bilberry (Vaccinium myrtillus), a close relative of blueberry, which was reputedly used by British pilots during World War II to improve night vision. While blueberries are rich in anthocyanins—compounds that have antioxidant properties and could theoretically benefit eye health—direct scientific evidence supporting the use of common blueberries (Vaccinium corymbosum or Vaccinium angustifolium) for improving poor eyesight or preventing eye diseases is limited and inconsistent. Most clinical research has focused on bilberry or isolated anthocyanins, not on blueberries per se. The evidence rating is 2, reflecting that while some laboratory and small human studies hint at potential benefits, there is insufficient high-quality clinical data to support a strong recommendation for blueberries in treating or preventing poor eyesight. Therefore, the primary justification for this use is traditional, with limited and indirect scientific support.

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Other ingredients used for Eyesight (poor)

Other health conditions supported by Blueberry (unspecified)

Products containing Blueberry (unspecified)