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Short-term effects of three retinal defocus signals on choroidal blood flow in adults

Short-term effects of three retinal defocus signals on choroidal blood flow in adults

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2000034593
Enrollment
Unknown
Registered
2020-07-11
Start date
2020-08-01
Completion date
Unknown
Last updated
2020-07-13

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

Conditions

myopia

Interventions

control group:non-defocus
hyperopic defocus:hyperopic defocus
myopic defocus:myopic defocus
form-deprivation:form-deprivation

Sponsors

The Affiliated Eye Hospital of Wenzhou Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
20 Years to 30 Years

Inclusion criteria

Inclusion criteria: (1) age 20-30 years old; (2) refractive state of each eye:-5.00D = 1.0; (4) intraocular pressure, 10-21mmHg.

Exclusion criteria

Exclusion criteria: (1) abnormal eye position or abnormal eye movement; (2) opacity of refractive media or vitreoretinal diseases; (3) history of ocular trauma or surgery; (4) having received or are receiving keratoplasties, multifocal soft lenses or atropine and other interventions to control the progression of myopia, as well as traditional Chinese medicine therapy and visual training. (5) history of smoking or systemic diseases, such as cardiovascular, respiratory and rheumatic immune diseases; (6) poor fixation function, unable to cooperate with the examination; (7) other conditions that the researchers believe are not suitable for the study.

Design outcomes

Primary

MeasureTime frame
Choroidal vascular index;Choroidal thickness;Blood perfusion of choroidal capillary;

Countries

China

Contacts

Public ContactHao Wu

The Affiliated Eye Hospital of Wenzhou Medical University

wuhao@eye.ac.cn+86 15958710273

Outcome results

None listed

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