clinical trial for the effectiveness and safety of vision training instrument for visual fatigue

the effectiveness and safety of vision training instrument for visual fatigue

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2000029793

Enrollment

Unknown

Registered

2020-02-14

Start date

2018-01-01

Completion date

Unknown

Last updated

2020-02-17

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

Conditions

visual fatigue

Interventions

visual fatigue:vision training instrument

Eligibility

Sex/Gender

All

Age

18 Years to 50 Years

Inclusion criteria

Inclusion criteria: With more than 3 symptoms of visual fatigue, which including eye pain, eye distension, photophobia, blurred vision, dry eyes, foreign body sensation, tears, general discomfort, and total score >=8. (refer to the functional evaluation method for relieving visual fatigue, State Food and Drug Administration[2012] no.107)

Exclusion criteria

Exclusion criteria: 1. subjects with spherical diopter (+6.0DS), cylindrical diopter (+3.0DC), or anisometropia; 2. best corrected visual acuity worse than 0.8; 3. heterotropia or stereopsis worse than 200 arcseconds(Titmus); 4. history of ocular surgery, significant ocular and systemic diseases; 5. any concomitant medications that might influence the visual fatigue or accommodation system.

Design outcomes

Primary

Measure	Time frame
visual fatigue;	—

Secondary

Measure	Time frame
visual acuity;the amplitude of accommodation;	—

Countries

China

Contacts

Public ContactGu Yangshun

The First Affiliated Hospital, College of Medicine, Zhejiang University

guyangshun@zju.edu.cn+86 13857120461

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026