Effect of Fermented Bilberry Extracts on Visual Outcomes in Eyes with Myopia. A Prospective, Randomized, Double-masked, Placebo-controlled Study

Effect of Fermented Bilberry Extracts on Visual Outcomes in Eyes with Myopia. A Prospective, Randomized, Double-masked, Placebo-controlled Study - Effect of Fermented Bilberry Extracts on Visual Outcomes

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000007741

Enrollment

Registered

2012-04-13

Start date

2011-02-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

refractive error

Interventions

refractive error Fermented Bilberry Extracts

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Subjects who first received active capsules were then given placebo, and the subjects who first received placebo were given active capsules.

Exclusion criteria

Exclusion criteria: ophthalmic disease other than refractive errors

Design outcomes

Primary

Measure	Time frame
uncorrected visual acuity, best spectacle-corrected visual acuity, subjective refraction, objective refraction, accommodation, contrast sensitivity	—

Countries

Japan

Contacts

Public ContactKazutaka Kamiya

University of Kitasato School of Medicine Department of Ophthalmology

kamiyak-tky@umin.ac.jp

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026