Myopia
Conditions
Interventions
Group 1:The subjects' eyes were randomly assigned to wear an orthokeratology lens (OK lens) in one eye and a soft contact lens in the fellow eye
after a 4-week washout period, the wearing methods were exchanged for both eyes. The eyes in this group received OK lens intervention in the first year, and the soft lens intervention eyes in the seco
Group 2:The subjects' eyes were randomly assigned to wear an orthokeratology lens (OK lens) in one eye and a soft contact lens in the fellow eye
after a 4-week washout period, the wearing methods were exchanged for both eyes. The eyes in this group received soft lens intervention in the first year, and the OK lens intervention eyes in the seco
Sponsors
Optometry Hospital Affiliated to Wenzhou Medical University
Eligibility
Sex/Gender
All
Age
8 Years to 12 Years
Inclusion criteria
Inclusion criteria: 1. Aged 8–12 years; 2. History of myopia progression greater than –0.50D per year with previous spectacles; 3. Spherical equivalent refraction: –0.75D to –5.00D; astigmatism: <=–1.50D; 4. Anisometropia: <= 1.00D; 5. Normal binocular vision function (including stereopsis); 6. No other organic ocular diseases; 7. No history of rigid contact lens wear, atropine treatment, or multifocal spectacle use.
Exclusion criteria
Exclusion criteria: 1. Those with a history of ocular trauma or surgery; 2. Patients with dry eye syndrome; 3. Previous use of medications related to myopia control (e.g., atropine eye drops); 4. Those with poor cooperation or who have acquired images of insufficient quality.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Two-year change in axial length;Two-year change in spherical equivalent; | — |
Secondary
| Measure | Time frame |
|---|---|
| Change in choroidal thickness;Rate of change in retinal blood flow density;Changes in corneal biomechanical parameters (measured by Corvis ST);meibomian gland scores;Non-invasive Keratograph Break-up (NIKBUT);Tear Meniscus Height(TMH); | — |
Countries
China
Contacts
Public ContactYunjie Zhang
Optometry Hospital Affiliated to Wenzhou Medical University
Outcome results
None listed