Myopia, Child Myopia Progression
Conditions
Keywords
lithographic microstructured myopia management lenses, myopia progression, Chinese children
Brief summary
Evaluate the effectiveness of different lithographic microstructured myopia management lenses in controlling the progression of myopia in children and adolescents, as well as the safety and comfort of wearing them. Explore effective defocus microlens designs for myopia control and the feasibility of applying lithographic microstructured myopia management lenses in myopia prevention and control.
Interventions
Microstructure myopia management lens
Sponsors
Study design
Eligibility
Inclusion criteria
* Age: 6 to 14 years old. * After administering 1% Cyclopentolate Hydrochloride Eye Drops (Saifeijie) to induce ciliary muscle paralysis, both eyes showed refractive errors between -0.50D and -4.00D, with binocular lens differences ≤ 1.50D and anisometropia ≤ 1.50D. Best corrected visual acuity was 5.0 or better. * Have not used over-focus glasses, corneal reshaping lenses, defocus flexible glasses, progressive lenses, atropine eye drops, red light therapy, acupuncture, moxibustion, or other myopia prevention methods within the past three months. * The subject is willing to receive treatment, and their legal guardian has signed an informed consent form.
Exclusion criteria
* Diagnosed with persistent strabismus. * Diagnosed with pathological myopia. * Other congenital eye diseases. * Other reasons the research doctor deems unsuitable for inclusion in the project.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Changes in spherical equivalent (SE) | 12 months | Changes in spherical equivalent (SE) of mydriatic refraction compared to baseline (D) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Changes in axial length (AL) | 12 months | Changes in axial length (AL) compared to baseline (mm) |
| Changes in choroidal thickness (ChT) | 12 months | Changes in choroidal thickness (ChT) compared to baseline (μm) |
Countries
China