myopia
Conditions
Interventions
Low concentration atropine group:Low concentration atropine(0.01%/0.02%/0.05%)
Low -dose red light group:650nm red light(Twice a day/once in the morning/once in the evening)
Multifocal peripheral retinal defocus lens group:Multifocal peripheral retinal defocus lens(Hyperopia defocus/Myopic defocus)
Sponsors
Qingdao Eye Hospital of Shandong First Medical University
Eligibility
Sex/Gender
All
Age
3 Years to 8 Years
Inclusion criteria
Inclusion criteria: 1. 3 years old = age <8 years old 2. Parents are all myopia 3. The growth rate of the eye axis in the past six months is =0.2mm, or the felling speed of the end of the view is almost half a year =0.25d 4. The current refractive (equivalent spherical mirror) is between+0.75d ~ -0.5D 5. Swilish =0.75D 6. No amblyopia, strabismus and other organic lesions 7. No medical intervention measures have not been taken yet
Exclusion criteria
Exclusion criteria: 1.There are other ocular diseases that affect vision or refractive errors such as corneal disease, cataracts, glaucoma, macular degeneration, etc.). 2. Binocular anisometropia (equivalent spherical power difference)=1.00D, strabismus, amblyopia. 3. Any pathological changes of the eyeball or systemic diseases. 4. Patients with halo, tics cured, ADHD cured, and psoriasis patients. 5. Those who have used myopia control treatment methods within 3 months, such as atropine, orthokeratology lens, multifocal soft lens, multifocal hard lens, functional frame glasses. 6. Other reasons that study doctors consider inappropriate for inclusion in the program.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Diopter;axial length?K1/K2; | — |
Secondary
| Measure | Time frame |
|---|---|
| vision acuity;binocular vision(accommodation,stereopsis);retina diopter;choroid blood flow and thickness;mf-ERG?mf-VEP; | — |
Countries
China
Contacts
Public Contactzhangjing
Qingdao Eye Hospital of Shandong First Medical University
Outcome results
None listed