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Effect of bilberry extract supplement on eye conditions and functions: a double-blind, randomized placebo-controlled and parallel study

Effect of bilberry extract supplement on eye conditions and functions: a double-blind, randomized placebo-controlled and parallel study - Effect of bilberry extract supplement on eye conditions and functions

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000024872
Enrollment
48
Registered
2016-11-18
Start date
2016-11-18
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

Healthy adult

Interventions

Sponsors

Japan clinical trial association
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1.Subjects who are aware of temporary eye fatigue 2.Adult male and female not suffering from a disease that affects the test 3.Subjects who perform VDT operation on a regular basis

Exclusion criteria

Exclusion criteria: 1. Subjects with hay fever 2. Subjects with food allergies 3. Subjects who are pregnant or lactating 4. Subjects who consume medicinal product which may influence the outcome of the study 5.Subjects who consume food which may influence the outcome of the study 6. Subjects who are judged as unsuitable for the study by the investigator for the other reason

Design outcomes

Primary

MeasureTime frame
1.Subjective evaluation (at week 0,4,8,12)Perform the test before and after work for 70 minutes

Secondary

MeasureTime frame
1.Fliker test 2.Accommodative fanction 1~2:(at week 0,4,8,12)Perform the test before and after work for 70 minutes

Countries

Japan

Contacts

Public ContactHirohisa Kojima

Japan clinical trial association N.A.

info@yakujihou.org03-6457-4666

Outcome results

None listed

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