Ignite Creation Date:
2025-12-24 @ 11:15 PM
Ignite Modification Date:
2025-12-25 @ 8:52 PM
Study NCT ID:
NCT07291856
Status:
COMPLETED
Last Update Posted:
2025-12-18
First Post:
2025-09-20
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Exploring the Impact of Dynamic Defocus Display Schemes on Ocular Health Indicators
Sponsor:
Beijing Tongren Hospital
Organization:
Study Overview
Official Title:
Exploring the Impact of Dynamic Defocus Display Schemes on Ocular Health Indicators
Status:
COMPLETED
Status Verified Date:
2025-05
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The present study is designed to explore the effects of dynamic defocus display technology on ocular health parameters using rigorous scientific approaches. It further examines the mechanisms through which this technology alleviates visual fatigue, thereby providing robust clinical evidence to support its practical application and widespread adoption.
Detailed Description:
Research Content Recruit adults who meet the inclusion criteria and have long-term use of VDT (Visual Display Terminal) devices for the trial.
Compare the impact of different dynamic defocus modes on the visual fatigue symptoms of the subjects.
Analyze the mechanisms through which dynamic defocus modes alleviate visual fatigue.
Research Outcome Measures Primary Outcome Measures and Definitions Binocular Visual Function: A series of assessments of visual ability, including accommodative function (amplitude of accommodation, accommodative facility) and vergence function (near point of convergence, AC/A ratio).
Secondary Outcome Measures and Definitions Critical Flicker Fusion Frequency (CFF): To evaluate the degree of eye fatigue, with lower measured values indicating a higher degree of fatigue.
Visual Fatigue Questionnaire Score: To assess the subjective level of visual fatigue experienced by the subjects.
Refraction Results: To monitor changes in refractive status during the trial and evaluate the impact of different dynamic defocus modes on refractive state when using VDT devices at near distance.
Compare the impact of different dynamic defocus modes on the visual fatigue symptoms of the subjects.
Analyze the mechanisms through which dynamic defocus modes alleviate visual fatigue.
Research Outcome Measures Primary Outcome Measures and Definitions Binocular Visual Function: A series of assessments of visual ability, including accommodative function (amplitude of accommodation, accommodative facility) and vergence function (near point of convergence, AC/A ratio).
Secondary Outcome Measures and Definitions Critical Flicker Fusion Frequency (CFF): To evaluate the degree of eye fatigue, with lower measured values indicating a higher degree of fatigue.
Visual Fatigue Questionnaire Score: To assess the subjective level of visual fatigue experienced by the subjects.
Refraction Results: To monitor changes in refractive status during the trial and evaluate the impact of different dynamic defocus modes on refractive state when using VDT devices at near distance.
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: