Add-on effect of using 650nm repeated monochromatic low-level red-light in poor responders of orthokeratology in myopic children

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2400080208

Enrollment

Unknown

Registered

2024-01-23

Start date

2022-05-20

Completion date

Unknown

Last updated

2024-01-28

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

Conditions

Myopia

Interventions

Group A:Orthokeratology lens

Group B:Orthokeratology lens and 650nm repeated monochromatic low-level red-light

Eligibility

Sex/Gender

All

Age

9 Years to 13 Years

Inclusion criteria

Inclusion criteria: 1. When starting ortho-k treatment: aged 8 - 12 years(aged 9 - 13 years at recruitment); initial equivalent spherical between -6.00D and -1.00 D, astigmatism less than-1.50D; eyes equivalent spherical difference less than 1.50D; 2. Annual axial elongation of 0.30 mm or greater in the first year of OK lens treatment

Exclusion criteria

Exclusion criteria: 1. Have used other methods to prevent myopia; 2. Have active ocular inflammation, history of ocular trauma, history of ocular surgery, systemic and ocular organic lesions; 3. Not regularly follow-up.

Design outcomes

Primary

Measure	Time frame
Axial length;	—

Secondary

Measure	Time frame
Choroidal thickness;Choroidal vascular index;Choroidal vessel volumn;	—

Countries

China

Contacts

Public ContactFu Aicun

The First Affiliated Hospital of Zhengzhou University

fuaicun2019@qq.com+86 150 9327 2336

Outcome results

None listed

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