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Observational study on the relationship between visual display terminal (VDT) working hours and eye focusing function.

Observational study on the relationship between visual display terminal (VDT) working hours and eye focusing function. - Observational study on the relationship between visual display terminal (VDT) working hours and eye focusing function.

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000057449
Enrollment
360
Registered
2025-05-06
Start date
2025-06-02
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

None listed

Interventions

None listed

Sponsors

Suntory Wellness Limited
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) Male and female participants who are aged 30 or older but under 60 at the time of obtaining consent. (2) Persons who can answer questions on the web questionnaire on PCs or smartphones. (3) Persons who fully understand the purpose and content of this study and have given their written consent via electronic informed consent.

Exclusion criteria

Exclusion criteria: (1) Persons who have been diagnosed with glaucoma or vitreoretinal diseases by a physician, either in the past or currently. (2) Persons who have ever undergone eye surgery (such as glaucoma surgery, cataract surgery, LASIK, ICL, etc.). (3) Persons currently diagnosed by a physician as having abnormalities in the tear film, cornea, or other areas of the eye surface. (4) Persons currently diagnosed with dry eye by a physician. (5) Persons who have experienced acute eye diseases (such as conjunctivitis or stye) within two weeks before the start of the study. (6) Persons with neurological diseases (such as stroke, cerebral hemorrhage, subarachnoid hemorrhage, cognitive disorders, or neurosis). (7) Persons with psychiatric disorders (such as depression, schizophrenia, anxiety disorders, etc.). (8) Persons undergoing treatment for serious illnesses such as cardiovascular diseases (myocardial infarction, angina, etc.) or cancer.

Design outcomes

Primary

MeasureTime frame
Near Activity Visual Question (NAVQ) score

Countries

Japan

Contacts

Public ContactSayaka Hioki

Suntory Wellness Limited Institute for Science of Life

Sayaka_Hioki@suntory.co.jp050-1739-0275

Outcome results

None listed

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