Bilberry (Vaccinium myrtillus) and eyes

What 3 graded rows on bilberry (vaccinium myrtillus) agree on for eyes, and where they differ. Counted side by side, never averaged.

Consensus finder Rows from the Bilberry (Vaccinium myrtillus) page, reviewed Oct 21, 2026 How it decides

What the rows agree on

Each block and row is one graded row from the Bilberry (Vaccinium myrtillus) page, with its PubMed record.

Supplement

Bilberry (Vaccinium myrtillus) Choose another

3 rows · 210 people

They agree: all 3 rows found an improvement.

No difference

Improved

Each block is one evidence row, sized by how many people it enrolled, with its grade inside.

From the rows

The best-graded row, grade D, is a randomized trial of 109 people (2020) and found an improvement.

The rows run from 21 to 109 people, published from 2015 to 2020: 3 single studies.

3 improved

Grade DCiliary muscle strain after near work · Improved
RCT · n 109 · 2020 · Healthy adults aged 20–60
240 mg/day · 12 weeks
Post-task HFC-1 values significantly better than placebo at weeks 8 and 12.
Row on the Bilberry (Vaccinium myrtillus) page · PubMed 32106548 (opens PubMed)
Grade DEye fatigue in screen (VDT) workers · Improved
RCT · n 80 · 2015 · Japanese office workers aged 20–40 with lower flicker-fusion and accommodation scores (80 of 88 completed)
480 mg/day · 8 weeks
Less drop in critical flicker fusion after screen work (P = 0.023) and fewer subjective fatigue symptoms at week 8; near-point accommodation unchanged; no serious adverse events.
Row on the Bilberry (Vaccinium myrtillus) page · PubMed 25923485 (opens PubMed)
Grade DDry eye tear secretion · Improved
RCT · n 21 · 2017 · Adults with dry eye symptoms (21 of 22 completed)
Daily extract (dose not stated in abstract) · 4 weeks
Schirmer test values improved with bilberry (P = 0.019) but not placebo; antioxidant potential also improved.
Row on the Bilberry (Vaccinium myrtillus) page · PubMed 28617532 (opens PubMed)