A 12-Week-Long Intake of Bilberry Extract (Vaccinium myrtillus L.) Improved Objective Findings of Ciliary Muscle Contraction of the Eye: A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Comparison Test
Kosehira M, Machida N, Kitaichi N
Published in Nutrients
Methodology
Randomized, double-blind, placebo-controlled parallel-group trial; 109 healthy adults aged 20-60 took 240 mg standardized bilberry extract or placebo daily for 12 weeks with visual display terminal load testing.
Key Findings
Post-VDT-task HFC-1 values (objective ciliary muscle accommodation) were significantly better in the bilberry group than placebo at weeks 8 and 12.
Conclusions
Standardized bilberry extract improved objective accommodative recovery after screen work in healthy adults.
Limitations
Single-centre Japanese cohort; surrogate objective endpoint rather than symptom relief; industry-linked extract.
Supplements Studied
post-load HFC-1 values at weeks 8 and 12 were significantly improved in the SBE group than in the placebo group
Related Health Concerns
Study Details
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Disclosures
Funding
Supplement manufacturer
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