From: Effects of orthokeratology on the progression of low to moderate myopia in Chinese children
Inclusion criteria | Exclusion criteria |
---|---|
• 7.0 to 11.5 years old • SE: >−0.50D and < −6.00D in both eyes • With-the-rule astigmatism (axes 180 ± 30) < 1.50D • BCVA:(logMAR) of 0.10 or better in both eyes • Had an IOP of <21 mmHg • Maintained regularly scheduled visits and completed the 1-year follow-up | • Discontinued lens wear for a total of 30 days or less during the 1 year (criterion only for ortho-k group) • Previous experience withcontact lens wear or other treatment for myopia control • Strabismus at distance or near ornystagmus • Contraindication for ortho-k lens(e.g., limbus-to-limbus corneal cylinder and dislocated corneal apex) • Previous history of ocular surgery, trauma, or chronic ocular disease • Concurrent use of medications that may affect tear quality • Systemic or ocular conditions that may affect tear quality or contact lens wear (e.g., allergy and concurrent medication) or that may affect refractive development (e.g., Down syndrome, ptosis) |