Effect of blue light on eye and systemic health

Effect of blue light on eye and systemic health - Effect of blue light on eye and systemic health

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000021158

Enrollment

Registered

2016-02-24

Start date

2015-12-10

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

sleep disorder, metablic disorder, cornea and retinal damage, dry eye, eye fatigue

Interventions

Washout period is two weeks when subjects live regular life as precisely as possible, specifically, no oversea travel or overnight work. blue light shield for 3 hours before bedtime for 3 months Washo

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Heathy subject proven by general health check.

Exclusion criteria

Exclusion criteria: Severe cataract or glaucoma.Vision worse than 16/20.

Design outcomes

Primary

Measure	Time frame
Primary outcomes:Sleep quality Assessment at;[1] before each intervention, [2]one month, and [3]three months for intervention 1.	—

Secondary

Measure	Time frame
Key secondary outcomes:Metabolic parameters, vision, cornea and retinal damage, ocular symptoms. Assessment at;[1] before each intervention, [2]one month, and [3]three months for intervention 1.	—

Countries

Japan

Contacts

Public Contactmasahiko masahiko ayaki

Keio Univ Sch of Med Ophthalmology

mayaki@olive.ocn.ne.jp090-2211-8355

Outcome results

None listed

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