A randomized controlled pilot trial for wearing plus lenses to slow down the emmetropization in preschool children

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2000029129

Enrollment

Unknown

Registered

2020-01-15

Start date

2020-01-16

Completion date

Unknown

Last updated

2020-01-20

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

Conditions

Myopia

Interventions

Experimental group:wearing plus lenses

Control group:wearing no lenses

Eligibility

Sex/Gender

All

Age

4 Years to 5 Years

Inclusion criteria

Inclusion criteria: 1. Aged between 4-5 years; 2. VA 20/25; 3. Astigmatism<=1.00D; 4. Anisomitropia<=1.00D.

Exclusion criteria

Exclusion criteria: 1. Myopia, Strabismus, Amblyopia, Nystamus; 2. Any history of eye or neurodevelopmental diseases that may affect refractive development; 3. Used Atropine in the past 3 months; 4. Had ocular surgery related to refraction system; 5. ADD, ADHD, LD.

Design outcomes

Primary

Measure	Time frame
Cycloplegic Refraction;	—

Secondary

Measure	Time frame
Axial length;Corneal curvature;Anterior chamber depth;Ocular position;Eye health;Height;Weight;Eye care habits;	—

Countries

China

Contacts

Public ContactGuoyi ZHOU

Yueqing People's Hospital

zhougy123456@163.com+86 13611460229

Outcome results

None listed

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