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This study aims to evaluate the effectiveness of lenses with 3D Designed Defocus in controlling the progression of myopia in children and adolescents, and to explore the feasibility of effective design, and apply personalized frame lenses for myopia prevention and control.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Experimental: 3D lens | Experimental | 3D Designed Defocus Lenses |
|
| Control: H. A. L. T, highly aspheric lenslet technology | Active Comparator | H. A. L. T, highly aspheric lenslet technology |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Defocus Lenses | Device | Defocus Lenses on Myopia Control |
|
| Measure | Description | Time Frame |
|---|---|---|
| Subjective refraction equivalent spherical | Subjective refraction equivalent spherical | 12 months |
| Measure | Description | Time Frame |
|---|---|---|
| Axial length | Axial length | 12 months |
| Choroidal thickness | Choroidal thickness | 12 months |
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Inclusion Criteria:
Age: 6-14 years old; After using 1% cyclohexanone hydrochloride eye drops (Saifeijie) for ciliary muscle paralysis, binocular spherical power were within -0.40D~-4.00D, binocular cylinder power ≤ 1.50D, the anisometropia is ≤ 1.50D, the progression of myopia in the past year is greater than 0.5D, the best corrected far vision is at least 4.8, and the near vision is at least 5.0; Within 3 months, the myopia prevention and control methods such as multifocal glasses, orthokeratology, defocusing flexible glasses, progressive glasses, atropine eye drops, red light and acupuncture and moxibustion treatment were not used; The subject has a willingness to receive treatment and an informed consent form is signed by their legal guardian.
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Shanghai Eye Diseases Prevention &Treatment Center/ Shanghai Eye Hospital, School of Medicine, Tongji University | Shanghai | China |
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| ID | Term |
|---|---|
| D009216 | Myopia |
| ID | Term |
|---|---|
| D012030 | Refractive Errors |
| D005128 | Eye Diseases |
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