myopia
Conditions
Interventions
low,moderate and high myopia group:orthokeratology lenses
low,moderate and high myopia group:spectacle glass
Sponsors
Shanghai Eye Disease Prevention & Treatment Center /Shanghai Eye Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. subjects aged 8–14 years; 2. had no other ocular diseases aside from refractive error and no keratoconus (confirmed by pre-treatment corneal topography); 3. had an intraocular pressure (IOP) of <21 mmHg; 4. had an with-the- rule astigmatism (axes 180+/-30) <= 1.50 D; 5. had a BCVA (best corrected visual acuity) <= 0.00 log MAR units in both eyes (Snellen equivalent to 20/20).
Exclusion criteria
Exclusion criteria: 1. had binocular vision problems; 2. use medications that might affect refractive development; 3. had history of ortho-k or contact lens wear; 4. Ocular surface diseases and other eye diseases which can cause abnormalities of ocular surface; 5. Patients with histories of ocular injury or surgery.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| objective scatter index (OSI); | — |
Secondary
| Measure | Time frame |
|---|---|
| modulation transfer function (MTF) cutoff;Strehl ratio (SR);contrast visual acuity at 100%;contrast visual acuity at 20%;contrast visual acuity at 9%;axial length;peripheral refraction;IOP;Anterior corneal morphological characteristics;Posterior corneal morphological characteristics;HOAs;tear film quality; | — |
Countries
China
Contacts
Public ContactMengjun Zhu
Shanghai Eye Disease Prevention & Treatment Center/Shanghai Eye Hospital
Outcome results
None listed