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Compare the difference between spherical frame lens and paracentral telephoto defocus lens in controlling the development of myopia

Compare the difference between spherical frame lens and paracentral telephoto defocus lens in controlling the development of myopia

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2100053546
Enrollment
Unknown
Registered
2021-11-24
Start date
2021-11-24
Completion date
Unknown
Last updated
2023-07-16

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

Conditions

ametropia

Interventions

observation group:Wear spherical frame mirror
control group:Wear a paracentral telephoto defocus lens

Sponsors

Hangzhou MSK Ophthalmic Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
8 Years to 14 Years

Inclusion criteria

Inclusion criteria: 1. Aged between 8-14 years. 2. Diopter: spherical lens at -0.75 - -6.00 D; cylinder lens at -0.25 - -1.75 D, astigmatism.

Exclusion criteria

Exclusion criteria: 1. There is a genetic disease of the eye. 2. Suffering from strabismus and amblyopia. 3. There are ocular organic diseases such as ocular trauma. 4. Those who cannot be followed up as required.

Design outcomes

Primary

MeasureTime frame
Spherical mirror;Column mirror;Ocular axis;Naked eye vision;—

Countries

China

Contacts

Public ContactZhang Jun

Hangzhou MSK Ophthalmic Hospital

mskzj@sina.cn+86 18667046602

Outcome results

None listed

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