Adolescent myopia
Conditions
Interventions
Group C:Use type-C specially designed lenses
Group D:Control group. Wear routine lenses
Group B:Use type-B specially designed lenses
Group A:Use type-A specially designed lense
Sponsors
Zhongshan Ophthalmic Center of Sun Yat-sen University
Eligibility
Sex/Gender
All
Age
6 Years to 16 Years
Inclusion criteria
Inclusion criteria: 1. Aged between 6 and 16 years old; 2. Degree of myopia >-0.50 D and <-4.50 D, astigmatism degree <-1.50 D, binocular anisometropic degree <1 D; 3. Health state around the ocular region is normal; 4. Visual acuity can be corrected to 6/9 (20/30) or higher.
Exclusion criteria
Exclusion criteria: 1. Patients with strabismus or amblyopia; 2. Patients with history of allergy and intolerable to tropicamide; 3. Patients with any ophthalmopathy; 4. Patients with history of ophthalmic surgery; 5. Patients with systematic diseases that may be related to myopia or influence the refractive status changes (such as Marfan Syndrome and diabetes mellitus, et al); 6. Patients who have to use anticholinergic drugs due to gastrointestinal and other diseases; 7. Patients who are taking part in other myopia-controlled research study; 8. Patients who wore orthokeratology lenses in the latest 2 weeks; 9. Patients who have accepted or are participating in the orthophoria treatment or vision training.
Design outcomes
Secondary
| Measure | Time frame |
|---|---|
| Axial length;Diopter; | — |
Countries
China
Contacts
Public ContactJian Ge, Xiang Chen
Outcome results
None listed