distance-image screen: Distance-image screen is a screen make each image at distance of 6-meters to reduce the accommodation and convergence for eyes during the reading and learning with screens.
Study summary
This study is for testing the efficacy and safety of distance-image screens for preventing myopia in children for 12 month. Each subjects would be asked to paired test the ocular parameters between before and after 12-month distance-image screens.
Eligibility
Sex
ALL
Min age
6 Years
Max age
12 Years
Healthy volunteers
Accepted
Inclusion Criteria:
* (1) Must be 6\~12 years old;
* (2) Must be best corrected visual acuity \< logMAR: 0.1;
* (3) Spherical Equivalence (SE) must be -1.00\~ + 6.00 Diopter (D),
* (4) Spherical Equivalence (SE) must have changed \> 1.25 Diopter (D) in the recent 2 years;
* (5) Must be astigmatism \<1.75 Diopter (D);
* (6) Must be anisometropia \<1.75 Diopter(D).
Exclusion Criteria:
* (1) Strabismus disease;
* (2) Amblyopia disease;
* (3) Cataract disease;
* (4) Glaucoma disease;
* (5) Severe dry eye disease;
* (6) Cannot use distance-image screen for 12 month;
* (7) Other severe diseases that would effect the use of distance-image screen.
Primary outcome measure(s)
Changes of ocular axial length (mm) — 12-month IntraOcularLens (IOL) master biometry will exam each eye before the testing and after the testing with distance-image screen
Changes of refractive error (D) — 12-month Cycloplegic refraction with autorefractor will test each eye before the testing and after the testing with distance-image screen
Trial sites (1)
Facility
City
Region
Status
Airdoc MPC Opthalmology Clinics
Beijing
Beijing Municipality
Recruiting
More Beijing Airdoc Technology Co., Ltd. trials in China
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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